253043322864 has 40 divisors (see below), whose sum is σ = 653715064320. Its totient is φ = 84345217728.

The previous prime is 253043322863. The next prime is 253043322887. The reversal of 253043322864 is 468223340352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253043322863) 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 7 ways as a sum of consecutive naturals, for example, 2178219 + ... + 2291445.

It is an arithmetic number, because the mean of its divisors is an integer number (16342876608).

Almost surely, 2^253043322864 is an apocalyptic number.

253043322864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253043322864 is an abundant number, since it is smaller than the sum of its proper divisors (400671741456).

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

253043322864 is a wasteful number, since it uses less digits than its factorization.

253043322864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159797 (or 159791 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 253043322864 in words is "two hundred fifty-three billion, forty-three million, three hundred twenty-two thousand, eight hundred sixty-four".