646272746070 has 64 divisors (see below), whose sum is σ = 1772742965760. Its totient is φ = 147710389248.

The previous prime is 646272746069. The next prime is 646272746089. The reversal of 646272746070 is 70647272646.

646272746070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3681414 + ... + 3852966.

It is an arithmetic number, because the mean of its divisors is an integer number (27699108840).

Almost surely, 2^646272746070 is an apocalyptic number.

646272746070 is an abundant number, since it is smaller than the sum of its proper divisors (1126470219690).

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

646272746070 is a wasteful number, since it uses less digits than its factorization.

646272746070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189509.

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 646272746070 in words is "six hundred forty-six billion, two hundred seventy-two million, seven hundred forty-six thousand, seventy".