253842975720 has 48 divisors (see below), whose sum is σ = 824989672260. Its totient is φ = 67691460096.

The previous prime is 253842975679. The next prime is 253842975781. The reversal of 253842975720 is 27579248352.

253842975720 is a `hidden beast` number, since 25 + 3 + 8 + 42 + 9 + 7 + 572 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 252464041764 + 1378933956 = 502458^2 + 37134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352559329 + ... + 352560048.

Almost surely, 2^253842975720 is an apocalyptic number.

253842975720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253842975720 is an abundant number, since it is smaller than the sum of its proper divisors (571146696540).

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

253842975720 is a wasteful number, since it uses less digits than its factorization.

253842975720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705119394 (or 705119387 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 253842975720 in words is "two hundred fifty-three billion, eight hundred forty-two million, nine hundred seventy-five thousand, seven hundred twenty".