78552764448 has 24 divisors (see below), whose sum is σ = 206201006928. Its totient is φ = 26184254784.

The previous prime is 78552764447. The next prime is 78552764449. The reversal of 78552764448 is 84446725587.

It is an interprime number because it is at equal distance from previous prime (78552764447) and next prime (78552764449).

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 78552764391 and 78552764400.

It is not an unprimeable number, because it can be changed into a prime (78552764447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409128886 + ... + 409129077.

It is an arithmetic number, because the mean of its divisors is an integer number (8591708622).

Almost surely, 2^78552764448 is an apocalyptic number.

It is an amenable number.

78552764448 is an abundant number, since it is smaller than the sum of its proper divisors (127648242480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78552764448 is a wasteful number, since it uses less digits than its factorization.

78552764448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818257976 (or 818257968 counting only the distinct ones).

The product of its digits is 60211200, while the sum is 60.

The spelling of 78552764448 in words is "seventy-eight billion, five hundred fifty-two million, seven hundred sixty-four thousand, four hundred forty-eight".