253469136986 has 16 divisors (see below), whose sum is σ = 431000152800. Its totient is φ = 110828610288.

The previous prime is 253469136979. The next prime is 253469137013. The reversal of 253469136986 is 689631964352.

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 in 7 ways as a sum of consecutive naturals, for example, 256547216 + ... + 256548203.

It is an arithmetic number, because the mean of its divisors is an integer number (26937509550).

Almost surely, 2^253469136986 is an apocalyptic number.

253469136986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

253469136986 is a deficient number, since it is larger than the sum of its proper divisors (177531015814).

253469136986 is a wasteful number, since it uses less digits than its factorization.

253469136986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513095453.

The product of its digits is 50388480, while the sum is 62.

The spelling of 253469136986 in words is "two hundred fifty-three billion, four hundred sixty-nine million, one hundred thirty-six thousand, nine hundred eighty-six".