253684981844 has 24 divisors (see below), whose sum is σ = 507431346240. Its totient is φ = 108708981696.

The previous prime is 253684981829. The next prime is 253684981853. The reversal of 253684981844 is 448189486352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310682 + ... + 777105.

It is an arithmetic number, because the mean of its divisors is an integer number (21142972760).

Almost surely, 2^253684981844 is an apocalyptic number.

It is an amenable number.

253684981844 is an abundant number, since it is smaller than the sum of its proper divisors (253746364396).

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

253684981844 is a wasteful number, since it uses less digits than its factorization.

253684981844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096127 (or 1096125 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 62.

The spelling of 253684981844 in words is "two hundred fifty-three billion, six hundred eighty-four million, nine hundred eighty-one thousand, eight hundred forty-four".