78252614880 has 96 divisors (see below), whose sum is σ = 268904458368. Its totient is φ = 18970329600.

The previous prime is 78252614849. The next prime is 78252614953. The reversal of 78252614880 is 8841625287.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×78252614880² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7405006 + ... + 7415565.

It is an arithmetic number, because the mean of its divisors is an integer number (2801088108).

Almost surely, 2^78252614880 is an apocalyptic number.

It is an amenable number.

78252614880 is an abundant number, since it is smaller than the sum of its proper divisors (190651843488).

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

78252614880 is a wasteful number, since it uses less digits than its factorization.

78252614880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820600 (or 14820592 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 78252614880 in words is "seventy-eight billion, two hundred fifty-two million, six hundred fourteen thousand, eight hundred eighty".