52815739392 has 640 divisors, whose sum is σ = 177638630400. Its totient is φ = 15475359744.

The previous prime is 52815739289. The next prime is 52815739409. The reversal of 52815739392 is 29393751825.

52815739392 is a `hidden beast` number, since 528 + 1 + 57 + 39 + 39 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4082400) is a multiple of the sum of its prime factors (150).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1123739113 + ... + 1123739159.

It is an arithmetic number, because the mean of its divisors is an integer number (277560360).

Almost surely, 2^52815739392 is an apocalyptic number.

52815739392 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52815739392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88819315200).

52815739392 is an abundant number, since it is smaller than the sum of its proper divisors (124822891008).

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

52815739392 is an equidigital number, since it uses as much as digits as its factorization.

52815739392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 102 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 52815739392 in words is "fifty-two billion, eight hundred fifteen million, seven hundred thirty-nine thousand, three hundred ninety-two".