72680183771 has 24 divisors (see below), whose sum is σ = 79804660320. Its totient is φ = 66154722816.

The previous prime is 72680183761. The next prime is 72680183777. The reversal of 72680183771 is 17738108627.

It is a happy number.

It is not a de Polignac number, because 72680183771 - 2⁶ = 72680183707 is a prime.

It is a super-2 number, since 2×72680183771² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72680183777) 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, 3752450 + ... + 3771768.

It is an arithmetic number, because the mean of its divisors is an integer number (3325194180).

Almost surely, 2^72680183771 is an apocalyptic number.

72680183771 is a deficient number, since it is larger than the sum of its proper divisors (7124476549).

72680183771 is a wasteful number, since it uses less digits than its factorization.

72680183771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19655 (or 19642 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 72680183771 in words is "seventy-two billion, six hundred eighty million, one hundred eighty-three thousand, seven hundred seventy-one".