52779253968 has 480 divisors, whose sum is σ = 188126848000. Its totient is φ = 14279255424.

The previous prime is 52779253921. The next prime is 52779253981. The reversal of 52779253968 is 86935297725.

52779253968 is a `hidden beast` number, since 5 + 2 + 7 + 7 + 92 + 539 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25337055 + ... + 25339137.

Almost surely, 2^52779253968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52779253968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94063424000).

52779253968 is an abundant number, since it is smaller than the sum of its proper divisors (135347594032).

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

52779253968 is a wasteful number, since it uses less digits than its factorization.

52779253968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2114 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The spelling of 52779253968 in words is "fifty-two billion, seven hundred seventy-nine million, two hundred fifty-three thousand, nine hundred sixty-eight".