78881463636275 has 6 divisors (see below), whose sum is σ = 97813014909012. Its totient is φ = 63105170909000.

The previous prime is 78881463636259. The next prime is 78881463636307. The reversal of 78881463636275 is 57263636418887.

It is not a de Polignac number, because 78881463636275 - 2⁴ = 78881463636259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1577629272701 + ... + 1577629272750.

It is an arithmetic number, because the mean of its divisors is an integer number (16302169151502).

Almost surely, 2^{78881463636275} is an apocalyptic number.

78881463636275 is a deficient number, since it is larger than the sum of its proper divisors (18931551272737).

78881463636275 is a wasteful number, since it uses less digits than its factorization.

78881463636275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155258545461 (or 3155258545456 counting only the distinct ones).

The product of its digits is 1950842880, while the sum is 74.

The spelling of 78881463636275 in words is "seventy-eight trillion, eight hundred eighty-one billion, four hundred sixty-three million, six hundred thirty-six thousand, two hundred seventy-five".