86861925868 has 12 divisors (see below), whose sum is σ = 153513404352. Its totient is φ = 43000953200.

The previous prime is 86861925863. The next prime is 86861925877. The reversal of 86861925868 is 86852916868.

It is not an unprimeable number, because it can be changed into a prime (86861925863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107501980 + ... + 107502787.

It is an arithmetic number, because the mean of its divisors is an integer number (12792783696).

Almost surely, 2^86861925868 is an apocalyptic number.

It is an amenable number.

86861925868 is a deficient number, since it is larger than the sum of its proper divisors (66651478484).

86861925868 is a wasteful number, since it uses less digits than its factorization.

86861925868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215004872 (or 215004870 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 67.

The spelling of 86861925868 in words is "eighty-six billion, eight hundred sixty-one million, nine hundred twenty-five thousand, eight hundred sixty-eight".