675615870 has 256 divisors, whose sum is σ = 2057011200. Its totient is φ = 156764160.

The previous prime is 675615833. The next prime is 675615877. The reversal of 675615870 is 78516576.

675615870 is a `hidden beast` number, since 6 + 7 + 5 + 61 + 587 + 0 = 666.

It is a hoax number, since the sum of its digits (45) 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 (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675615877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5319747 + ... + 5319873.

It is an arithmetic number, because the mean of its divisors is an integer number (8035200).

Almost surely, 2^675615870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675615870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028505600).

675615870 is an abundant number, since it is smaller than the sum of its proper divisors (1381395330).

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

675615870 is a wasteful number, since it uses less digits than its factorization.

675615870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 675615870 is about 25992.6118349042. The cubic root of 675615870 is about 877.4720277445.

The spelling of 675615870 in words is "six hundred seventy-five million, six hundred fifteen thousand, eight hundred seventy".