52785311579 has 32 divisors (see below), whose sum is σ = 71769815040. Its totient is φ = 37486800000.

The previous prime is 52785311573. The next prime is 52785311609. The reversal of 52785311579 is 97511358725.

It is not a de Polignac number, because 52785311579 - 2¹² = 52785307483 is a prime.

It is a super-2 number, since 2×52785311579² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52785311579.

It is not an unprimeable number, because it can be changed into a prime (52785311573) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 254672 + ... + 412829.

It is an arithmetic number, because the mean of its divisors is an integer number (2242806720).

Almost surely, 2^52785311579 is an apocalyptic number.

52785311579 is a deficient number, since it is larger than the sum of its proper divisors (18984503461).

52785311579 is a wasteful number, since it uses less digits than its factorization.

52785311579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667611.

The product of its digits is 2646000, while the sum is 53.

The spelling of 52785311579 in words is "fifty-two billion, seven hundred eighty-five million, three hundred eleven thousand, five hundred seventy-nine".