253444463676 has 42 divisors (see below), whose sum is σ = 664987521912. Its totient is φ = 84481486920.

The previous prime is 253444463639. The next prime is 253444463717. The reversal of 253444463676 is 676364444352.

253444463676 is a `hidden beast` number, since 2 + 534 + 4 + 4 + 4 + 6 + 36 + 76 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 43454640 + ... + 43460471.

It is an arithmetic number, because the mean of its divisors is an integer number (15833036236).

Almost surely, 2^253444463676 is an apocalyptic number.

It is an amenable number.

253444463676 is an abundant number, since it is smaller than the sum of its proper divisors (411543058236).

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

253444463676 is an equidigital number, since it uses as much as digits as its factorization.

253444463676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86915133 (or 86915116 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 54.

The spelling of 253444463676 in words is "two hundred fifty-three billion, four hundred forty-four million, four hundred sixty-three thousand, six hundred seventy-six".