5256400964880 has 160 divisors (see below), whose sum is σ = 17639218267776. Its totient is φ = 1287179108352.

The previous prime is 5256400964863. The next prime is 5256400964887. The reversal of 5256400964880 is 884690046525.

It is a happy number.

It is a super-2 number, since 2×5256400964880² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5256400964880.

It is not an unprimeable number, because it can be changed into a prime (5256400964887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3762462 + ... + 4966781.

Almost surely, 2^{5256400964880} is an apocalyptic number.

It is an amenable number.

5256400964880 is an abundant number, since it is smaller than the sum of its proper divisors (12382817302896).

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

5256400964880 is a wasteful number, since it uses less digits than its factorization.

5256400964880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729465 (or 8729459 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 5256400964880 in words is "five trillion, two hundred fifty-six billion, four hundred million, nine hundred sixty-four thousand, eight hundred eighty".