253402720478370 has 48 divisors (see below), whose sum is σ = 659593219626432. Its totient is φ = 67497530960160.

The previous prime is 253402720478357. The next prime is 253402720478389. The reversal of 253402720478370 is 73874027204352.

253402720478370 is a `hidden beast` number, since 2 + 5 + 3 + 40 + 27 + 204 + 7 + 8 + 370 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1594249966 + ... + 1594408905.

It is an arithmetic number, because the mean of its divisors is an integer number (13741525408884).

Almost surely, 2^{253402720478370} is an apocalyptic number.

253402720478370 is an abundant number, since it is smaller than the sum of its proper divisors (406190499148062).

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

253402720478370 is a wasteful number, since it uses less digits than its factorization.

253402720478370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188659767 (or 3188659764 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 54.

The spelling of 253402720478370 in words is "two hundred fifty-three trillion, four hundred two billion, seven hundred twenty million, four hundred seventy-eight thousand, three hundred seventy".