52977759866 has 8 divisors (see below), whose sum is σ = 79551091764. Its totient is φ = 26460729280.

The previous prime is 52977759841. The next prime is 52977759871. The reversal of 52977759866 is 66895777925.

It can be written as a sum of positive squares in 2 ways, for example, as 49856191225 + 3121568641 = 223285^2 + 55871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52977759866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14072975 + ... + 14076738.

Almost surely, 2^52977759866 is an apocalyptic number.

52977759866 is a deficient number, since it is larger than the sum of its proper divisors (26573331898).

52977759866 is a wasteful number, since it uses less digits than its factorization.

52977759866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28150656.

The product of its digits is 400075200, while the sum is 71.

The spelling of 52977759866 in words is "fifty-two billion, nine hundred seventy-seven million, seven hundred fifty-nine thousand, eight hundred sixty-six".