78280253053256 has 32 divisors (see below), whose sum is σ = 147306999665280. Its totient is φ = 38998389643200.

The previous prime is 78280253053207. The next prime is 78280253053273. The reversal of 78280253053256 is 65235035208287.

It is a super-2 number, since 2×78280253053256² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301492211 + ... + 301751741.

It is an arithmetic number, because the mean of its divisors is an integer number (4603343739540).

Almost surely, 2^{78280253053256} is an apocalyptic number.

It is an amenable number.

78280253053256 is a deficient number, since it is larger than the sum of its proper divisors (69026746612024).

78280253053256 is a wasteful number, since it uses less digits than its factorization.

78280253053256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395925 (or 395921 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 78280253053256 in words is "seventy-eight trillion, two hundred eighty billion, two hundred fifty-three million, fifty-three thousand, two hundred fifty-six".