253673634263 has 16 divisors (see below), whose sum is σ = 290321505600. Its totient is φ = 217128128256.

The previous prime is 253673634223. The next prime is 253673634289. The reversal of 253673634263 is 362436376352.

It is a cyclic number.

It is not a de Polignac number, because 253673634263 - 2²⁶ = 253606525399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253673634223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28520645 + ... + 28529537.

It is an arithmetic number, because the mean of its divisors is an integer number (18145094100).

Almost surely, 2^253673634263 is an apocalyptic number.

253673634263 is a deficient number, since it is larger than the sum of its proper divisors (36647871337).

253673634263 is an equidigital number, since it uses as much as digits as its factorization.

253673634263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14186.

The product of its digits is 9797760, while the sum is 50.

The spelling of 253673634263 in words is "two hundred fifty-three billion, six hundred seventy-three million, six hundred thirty-four thousand, two hundred sixty-three".