253930312667 has 4 divisors (see below), whose sum is σ = 257506796016. Its totient is φ = 250353829320.

The previous prime is 253930312639. The next prime is 253930312693. The reversal of 253930312667 is 766213039352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253930312667 - 2²⁴ = 253913535451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253930312607) 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, 1788241568 + ... + 1788241709.

It is an arithmetic number, because the mean of its divisors is an integer number (64376699004).

Almost surely, 2^253930312667 is an apocalyptic number.

253930312667 is a deficient number, since it is larger than the sum of its proper divisors (3576483349).

253930312667 is an equidigital number, since it uses as much as digits as its factorization.

253930312667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576483348.

The product of its (nonzero) digits is 1224720, while the sum is 47.

The spelling of 253930312667 in words is "two hundred fifty-three billion, nine hundred thirty million, three hundred twelve thousand, six hundred sixty-seven".