78881886065125 has 64 divisors (see below), whose sum is σ = 118781003996928. Its totient is φ = 51524436960000.

The previous prime is 78881886065053. The next prime is 78881886065137. The reversal of 78881886065125 is 52156068818887.

It is not a de Polignac number, because 78881886065125 - 2¹⁵ = 78881886032357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58973391 + ... + 60296140.

It is an arithmetic number, because the mean of its divisors is an integer number (1855953187452).

Almost surely, 2^{78881886065125} is an apocalyptic number.

It is an amenable number.

78881886065125 is a deficient number, since it is larger than the sum of its proper divisors (39899117931803).

78881886065125 is a wasteful number, since it uses less digits than its factorization.

78881886065125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119269607 (or 119269597 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 73.

The spelling of 78881886065125 in words is "seventy-eight trillion, eight hundred eighty-one billion, eight hundred eighty-six million, sixty-five thousand, one hundred twenty-five".