8731625630 has 64 divisors (see below), whose sum is σ = 19609043328. Its totient is φ = 2725539840.

The previous prime is 8731625627. The next prime is 8731625659. The reversal of 8731625630 is 365261378.

It is a super-2 number, since 2×8731625630² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710 + ... + 132150.

It is an arithmetic number, because the mean of its divisors is an integer number (306391302).

Almost surely, 2^8731625630 is an apocalyptic number.

8731625630 is an abundant number, since it is smaller than the sum of its proper divisors (10877417698).

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

8731625630 is a wasteful number, since it uses less digits than its factorization.

8731625630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131541.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 8731625630 is about 93443.1679150488. The cubic root of 8731625630 is about 2059.1992386796.

The spelling of 8731625630 in words is "eight billion, seven hundred thirty-one million, six hundred twenty-five thousand, six hundred thirty".