253391860757 has 16 divisors (see below), whose sum is σ = 294338668032. Its totient is φ = 213641437680.

The previous prime is 253391860747. The next prime is 253391860769. The reversal of 253391860757 is 757068193352.

It is a cyclic number.

It is not a de Polignac number, because 253391860757 - 2¹⁴ = 253391844373 is a prime.

It is a super-2 number, since 2×253391860757² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253391860727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66863 + ... + 715020.

It is an arithmetic number, because the mean of its divisors is an integer number (18396166752).

Almost surely, 2^253391860757 is an apocalyptic number.

It is an amenable number.

253391860757 is a deficient number, since it is larger than the sum of its proper divisors (40946807275).

253391860757 is an equidigital number, since it uses as much as digits as its factorization.

253391860757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782648.

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 253391860757 in words is "two hundred fifty-three billion, three hundred ninety-one million, eight hundred sixty thousand, seven hundred fifty-seven".