253469136988 has 6 divisors (see below), whose sum is σ = 443570989736. Its totient is φ = 126734568492.

The previous prime is 253469136979. The next prime is 253469137013. The reversal of 253469136988 is 889631964352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31683642120 + ... + 31683642127.

Almost surely, 2^253469136988 is an apocalyptic number.

It is an amenable number.

253469136988 is a deficient number, since it is larger than the sum of its proper divisors (190101852748).

253469136988 is a wasteful number, since it uses less digits than its factorization.

253469136988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63367284251 (or 63367284249 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 64.

The spelling of 253469136988 in words is "two hundred fifty-three billion, four hundred sixty-nine million, one hundred thirty-six thousand, nine hundred eighty-eight".