52779999972 has 48 divisors (see below), whose sum is σ = 140772316160. Its totient is φ = 15077251872.

The previous prime is 52779999949. The next prime is 52780000033. The reversal of 52779999972 is 27999997725.

It is a junction number, because it is equal to n+sod(n) for n = 52779999894 and 52779999903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431073 + ... + 539799.

Almost surely, 2^52779999972 is an apocalyptic number.

It is an amenable number.

52779999972 is an abundant number, since it is smaller than the sum of its proper divisors (87992316188).

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

52779999972 is a wasteful number, since it uses less digits than its factorization.

52779999972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114520 (or 114518 counting only the distinct ones).

The product of its digits is 405076140, while the sum is 75.

The spelling of 52779999972 in words is "fifty-two billion, seven hundred seventy-nine million, nine hundred ninety-nine thousand, nine hundred seventy-two".