78562256127520 has 48 divisors (see below), whose sum is σ = 202476360115008. Its totient is φ = 28568093136640.

The previous prime is 78562256127389. The next prime is 78562256127539. The reversal of 78562256127520 is 2572165226587.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22318821004 + ... + 22318824523.

It is an arithmetic number, because the mean of its divisors is an integer number (4218257502396).

Almost surely, 2^{78562256127520} is an apocalyptic number.

It is an amenable number.

78562256127520 is an abundant number, since it is smaller than the sum of its proper divisors (123914103987488).

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

78562256127520 is a wasteful number, since it uses less digits than its factorization.

78562256127520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44637645553 (or 44637645545 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 58.

The spelling of 78562256127520 in words is "seventy-eight trillion, five hundred sixty-two billion, two hundred fifty-six million, one hundred twenty-seven thousand, five hundred twenty".