865872942930 has 24 divisors (see below), whose sum is σ = 2251269651852. Its totient is φ = 230899451424.

The previous prime is 865872942901. The next prime is 865872942937. The reversal of 865872942930 is 39249278568.

865872942930 is a `hidden beast` number, since 8 + 6 + 58 + 7 + 294 + 293 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 851166772569 + 14706170361 = 922587^2 + 121269^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (865872942937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4810405149 + ... + 4810405328.

Almost surely, 2^865872942930 is an apocalyptic number.

865872942930 is an abundant number, since it is smaller than the sum of its proper divisors (1385396708922).

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

865872942930 is a wasteful number, since it uses less digits than its factorization.

865872942930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620810490 (or 9620810487 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 865872942930 in words is "eight hundred sixty-five billion, eight hundred seventy-two million, nine hundred forty-two thousand, nine hundred thirty".