395453865870 has 192 divisors, whose sum is σ = 1245131761536. Its totient is φ = 85007646720.

The previous prime is 395453865857. The next prime is 395453865883. The reversal of 395453865870 is 78568354593.

395453865870 is a `hidden beast` number, since 3 + 9 + 5 + 45 + 3 + 8 + 6 + 587 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (395453865857) and next prime (395453865883).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 395453865798 and 395453865807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14777142 + ... + 14803878.

It is an arithmetic number, because the mean of its divisors is an integer number (6485061258).

Almost surely, 2^395453865870 is an apocalyptic number.

395453865870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 395453865870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622565880768).

395453865870 is an abundant number, since it is smaller than the sum of its proper divisors (849677895666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395453865870 is a wasteful number, since it uses less digits than its factorization.

395453865870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28155 (or 28152 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 63.

The spelling of 395453865870 in words is "three hundred ninety-five billion, four hundred fifty-three million, eight hundred sixty-five thousand, eight hundred seventy".