253780476368 has 40 divisors (see below), whose sum is σ = 499105763520. Its totient is φ = 124979500800.

The previous prime is 253780476329. The next prime is 253780476379. The reversal of 253780476368 is 863674087352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12552668 + ... + 12572868.

It is an arithmetic number, because the mean of its divisors is an integer number (12477644088).

Almost surely, 2^253780476368 is an apocalyptic number.

It is an amenable number.

253780476368 is a deficient number, since it is larger than the sum of its proper divisors (245325287152).

253780476368 is a wasteful number, since it uses less digits than its factorization.

253780476368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31995 (or 31989 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 59.

The spelling of 253780476368 in words is "two hundred fifty-three billion, seven hundred eighty million, four hundred seventy-six thousand, three hundred sixty-eight".