86969309825 has 24 divisors (see below), whose sum is σ = 108121570848. Its totient is φ = 69395300480.

The previous prime is 86969309783. The next prime is 86969309863. The reversal of 86969309825 is 52890396968.

It is not a de Polignac number, because 86969309825 - 2¹⁴ = 86969293441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18728954 + ... + 18733596.

It is an arithmetic number, because the mean of its divisors is an integer number (4505065452).

Almost surely, 2^86969309825 is an apocalyptic number.

It is an amenable number.

86969309825 is a deficient number, since it is larger than the sum of its proper divisors (21152261023).

86969309825 is a wasteful number, since it uses less digits than its factorization.

86969309825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 65.

The spelling of 86969309825 in words is "eighty-six billion, nine hundred sixty-nine million, three hundred nine thousand, eight hundred twenty-five".