253158979874 has 8 divisors (see below), whose sum is σ = 379744925868. Its totient is φ = 126577337920.

The previous prime is 253158979873. The next prime is 253158979939. The reversal of 253158979874 is 478979851352.

It can be written as a sum of positive squares in 2 ways, for example, as 206258580649 + 46900399225 = 454157^2 + 216565^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (253158979873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924707 + ... + 1166790.

Almost surely, 2^253158979874 is an apocalyptic number.

253158979874 is a deficient number, since it is larger than the sum of its proper divisors (126585945994).

253158979874 is a wasteful number, since it uses less digits than its factorization.

253158979874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152020.

The product of its digits is 152409600, while the sum is 68.

The spelling of 253158979874 in words is "two hundred fifty-three billion, one hundred fifty-eight million, nine hundred seventy-nine thousand, eight hundred seventy-four".