72635340572 has 12 divisors (see below), whose sum is σ = 129510183096. Its totient is φ = 35632431120.

The previous prime is 72635340541. The next prime is 72635340599. The reversal of 72635340572 is 27504353627.

It is a happy number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171309554 + ... + 171309977.

It is an arithmetic number, because the mean of its divisors is an integer number (10792515258).

Almost surely, 2^72635340572 is an apocalyptic number.

It is an amenable number.

72635340572 is a deficient number, since it is larger than the sum of its proper divisors (56874842524).

72635340572 is a wasteful number, since it uses less digits than its factorization.

72635340572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342619588 (or 342619586 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 72635340572 in words is "seventy-two billion, six hundred thirty-five million, three hundred forty thousand, five hundred seventy-two".