797799452544 has 64 divisors (see below), whose sum is σ = 2354616450000. Its totient is φ = 265933149696.

The previous prime is 797799452519. The next prime is 797799452599. The reversal of 797799452544 is 445254997797.

797799452544 is a `hidden beast` number, since 7 + 9 + 7 + 7 + 9 + 94 + 525 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×797799452544² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115418919 + ... + 115425830.

Almost surely, 2^797799452544 is an apocalyptic number.

It is an amenable number.

797799452544 is an abundant number, since it is smaller than the sum of its proper divisors (1556816997456).

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

797799452544 is a wasteful number, since it uses less digits than its factorization.

797799452544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230844772 (or 230844754 counting only the distinct ones).

The product of its digits is 800150400, while the sum is 72.

The spelling of 797799452544 in words is "seven hundred ninety-seven billion, seven hundred ninety-nine million, four hundred fifty-two thousand, five hundred forty-four".