72644052647202 has 64 divisors (see below), whose sum is σ = 153965992320000. Its totient is φ = 22785564938688.

The previous prime is 72644052647189. The next prime is 72644052647219. The reversal of 72644052647202 is 20274625044627.

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, 996685053 + ... + 996757935.

It is an arithmetic number, because the mean of its divisors is an integer number (2405718630000).

Almost surely, 2^{72644052647202} is an apocalyptic number.

72644052647202 is an abundant number, since it is smaller than the sum of its proper divisors (81321939672798).

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

72644052647202 is a wasteful number, since it uses less digits than its factorization.

72644052647202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131735.

The product of its (nonzero) digits is 9031680, while the sum is 51.

The spelling of 72644052647202 in words is "seventy-two trillion, six hundred forty-four billion, fifty-two million, six hundred forty-seven thousand, two hundred two".