3895494432120 has 512 divisors, whose sum is σ = 13419766886400. Its totient is φ = 1004509900800.

The previous prime is 3895494432113. The next prime is 3895494432143. The reversal of 3895494432120 is 212344945983.

It is a happy number.

3895494432120 is a `hidden beast` number, since 3 + 8 + 9 + 549 + 44 + 32 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2737521729 + ... + 2737523151.

It is an arithmetic number, because the mean of its divisors is an integer number (26210482200).

Almost surely, 2^{3895494432120} is an apocalyptic number.

3895494432120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3895494432120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6709883443200).

3895494432120 is an abundant number, since it is smaller than the sum of its proper divisors (9524272454280).

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

3895494432120 is a wasteful number, since it uses less digits than its factorization.

3895494432120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 3895494432120 in words is "three trillion, eight hundred ninety-five billion, four hundred ninety-four million, four hundred thirty-two thousand, one hundred twenty".