78563623325 has 24 divisors (see below), whose sum is σ = 106335292320. Its totient is φ = 57104849600.

The previous prime is 78563623309. The next prime is 78563623337. The reversal of 78563623325 is 52332636587.

It is not a de Polignac number, because 78563623325 - 2⁴ = 78563623309 is a prime.

It is a congruent 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, 411491 + ... + 571359.

It is an arithmetic number, because the mean of its divisors is an integer number (4430637180).

Almost surely, 2^78563623325 is an apocalyptic number.

It is an amenable number.

78563623325 is a deficient number, since it is larger than the sum of its proper divisors (27771668995).

78563623325 is a wasteful number, since it uses less digits than its factorization.

78563623325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161677 (or 161672 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 50.

The spelling of 78563623325 in words is "seventy-eight billion, five hundred sixty-three million, six hundred twenty-three thousand, three hundred twenty-five".