78825375965 has 16 divisors (see below), whose sum is σ = 108169894272. Its totient is φ = 54018425664.

The previous prime is 78825375931. The next prime is 78825375971. The reversal of 78825375965 is 56957352887.

It is not a de Polignac number, because 78825375965 - 2⁶ = 78825375901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635174 + ... + 749063.

It is an arithmetic number, because the mean of its divisors is an integer number (6760618392).

Almost surely, 2^78825375965 is an apocalyptic number.

It is an amenable number.

78825375965 is a deficient number, since it is larger than the sum of its proper divisors (29344518307).

78825375965 is a wasteful number, since it uses less digits than its factorization.

78825375965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385876.

The product of its digits is 127008000, while the sum is 65.

The spelling of 78825375965 in words is "seventy-eight billion, eight hundred twenty-five million, three hundred seventy-five thousand, nine hundred sixty-five".