253936836345 has 32 divisors (see below), whose sum is σ = 430291971072. Its totient is φ = 127611076032.

The previous prime is 253936836323. The next prime is 253936836359. The reversal of 253936836345 is 543638639352.

It is not a de Polignac number, because 253936836345 - 2¹⁶ = 253936770809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5469787 + ... + 5516016.

It is an arithmetic number, because the mean of its divisors is an integer number (13446624096).

Almost surely, 2^253936836345 is an apocalyptic number.

It is an amenable number.

253936836345 is a deficient number, since it is larger than the sum of its proper divisors (176355134727).

253936836345 is a wasteful number, since it uses less digits than its factorization.

253936836345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985901.

The product of its digits is 41990400, while the sum is 57.

The spelling of 253936836345 in words is "two hundred fifty-three billion, nine hundred thirty-six million, eight hundred thirty-six thousand, three hundred forty-five".