253481350768 has 20 divisors (see below), whose sum is σ = 493588063600. Its totient is φ = 126103785984.

The previous prime is 253481350741. The next prime is 253481350799. The reversal of 253481350768 is 867053184352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39802305 + ... + 39808672.

It is an arithmetic number, because the mean of its divisors is an integer number (24679403180).

Almost surely, 2^253481350768 is an apocalyptic number.

It is an amenable number.

253481350768 is a deficient number, since it is larger than the sum of its proper divisors (240106712832).

253481350768 is a wasteful number, since it uses less digits than its factorization.

253481350768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79611184 (or 79611178 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 253481350768 in words is "two hundred fifty-three billion, four hundred eighty-one million, three hundred fifty thousand, seven hundred sixty-eight".