252979753936 has 80 divisors (see below), whose sum is σ = 605392057984. Its totient is φ = 99726100992.

The previous prime is 252979753927. The next prime is 252979753987. The reversal of 252979753936 is 639357979252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105070 + ... + 719026.

Almost surely, 2^252979753936 is an apocalyptic number.

252979753936 is a gapful number since it is divisible by the number (26) 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 252979753936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302696028992).

252979753936 is an abundant number, since it is smaller than the sum of its proper divisors (352412304048).

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

252979753936 is a wasteful number, since it uses less digits than its factorization.

252979753936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614268 (or 614262 counting only the distinct ones).

The product of its digits is 192893400, while the sum is 67.

The spelling of 252979753936 in words is "two hundred fifty-two billion, nine hundred seventy-nine million, seven hundred fifty-three thousand, nine hundred thirty-six".