78695125889 has 8 divisors (see below), whose sum is σ = 82848457440. Its totient is φ = 74542942656.

The previous prime is 78695125721. The next prime is 78695125897. The reversal of 78695125889 is 98852159687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78695125889 - 2²⁴ = 78678348673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78695125489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144584 + ... + 422249.

It is an arithmetic number, because the mean of its divisors is an integer number (10356057180).

Almost surely, 2^78695125889 is an apocalyptic number.

It is an amenable number.

78695125889 is a deficient number, since it is larger than the sum of its proper divisors (4153331551).

78695125889 is a wasteful number, since it uses less digits than its factorization.

78695125889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574159.

The product of its digits is 87091200, while the sum is 68.

The spelling of 78695125889 in words is "seventy-eight billion, six hundred ninety-five million, one hundred twenty-five thousand, eight hundred eighty-nine".