72649774602 has 48 divisors (see below), whose sum is σ = 163518264000. Its totient is φ = 23293166400.

The previous prime is 72649774597. The next prime is 72649774607. The reversal of 72649774602 is 20647794627.

72649774602 is a `hidden beast` number, since 7 + 26 + 4 + 9 + 7 + 7 + 4 + 602 = 666.

It is an interprime number because it is at equal distance from previous prime (72649774597) and next prime (72649774607).

It is not an unprimeable number, because it can be changed into a prime (72649774607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 640852 + ... + 745647.

It is an arithmetic number, because the mean of its divisors is an integer number (3406630500).

Almost surely, 2^72649774602 is an apocalyptic number.

72649774602 is an abundant number, since it is smaller than the sum of its proper divisors (90868489398).

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

72649774602 is a wasteful number, since it uses less digits than its factorization.

72649774602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386619 (or 1386616 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 54.

The spelling of 72649774602 in words is "seventy-two billion, six hundred forty-nine million, seven hundred seventy-four thousand, six hundred two".