861023611025 has 48 divisors (see below), whose sum is σ = 1121037415680. Its totient is φ = 654766675200.

The previous prime is 861023611013. The next prime is 861023611067. The reversal of 861023611025 is 520116320168.

It is not a de Polignac number, because 861023611025 - 2⁶ = 861023610961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248633444 + ... + 248636906.

It is an arithmetic number, because the mean of its divisors is an integer number (23354946160).

Almost surely, 2^861023611025 is an apocalyptic number.

It is an amenable number.

861023611025 is a deficient number, since it is larger than the sum of its proper divisors (260013804655).

861023611025 is a wasteful number, since it uses less digits than its factorization.

861023611025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066 (or 6061 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 861023611025 in words is "eight hundred sixty-one billion, twenty-three million, six hundred eleven thousand, twenty-five".