6277981053564 has 72 divisors (see below), whose sum is σ = 17313332622768. Its totient is φ = 1902272977920.

The previous prime is 6277981053557. The next prime is 6277981053593. The reversal of 6277981053564 is 4653501897726.

6277981053564 is a `hidden beast` number, since 6 + 2 + 7 + 7 + 9 + 8 + 10 + 53 + 564 = 666.

It is a super-2 number, since 2×6277981053564² (a number of 26 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 (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4634194 + ... + 5833670.

It is an arithmetic number, because the mean of its divisors is an integer number (240462953094).

It is a 1-persistent number, because it is pandigital, but 2⋅6277981053564 = 12555962107128 is not.

Almost surely, 2^{6277981053564} is an apocalyptic number.

It is an amenable number.

6277981053564 is an abundant number, since it is smaller than the sum of its proper divisors (11035351569204).

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

6277981053564 is a wasteful number, since it uses less digits than its factorization.

6277981053564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212715 (or 1212710 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 6277981053564 in words is "six trillion, two hundred seventy-seven billion, nine hundred eighty-one million, fifty-three thousand, five hundred sixty-four".