72060933845 has 8 divisors (see below), whose sum is σ = 86475407064. Its totient is φ = 57647222784.

The previous prime is 72060933821. The next prime is 72060933929. The reversal of 72060933845 is 54833906027.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6652359844 + 65408574001 = 81562^2 + 255751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72060933845 - 2⁸ = 72060933589 is a prime.

It is a super-2 number, since 2×72060933845² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72060933845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43637 + ... + 382133.

It is an arithmetic number, because the mean of its divisors is an integer number (10809425883).

Almost surely, 2^72060933845 is an apocalyptic number.

It is an amenable number.

72060933845 is a deficient number, since it is larger than the sum of its proper divisors (14414473219).

72060933845 is a wasteful number, since it uses less digits than its factorization.

72060933845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381079.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 72060933845 in words is "seventy-two billion, sixty million, nine hundred thirty-three thousand, eight hundred forty-five".