72680404291 has 8 divisors (see below), whose sum is σ = 79485443568. Its totient is φ = 65908320000.

The previous prime is 72680404289. The next prime is 72680404319. The reversal of 72680404291 is 19240408627.

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 72680404291 - 2¹ = 72680404289 is a prime.

It is a super-2 number, since 2×72680404291² (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 (72680404201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8234130 + ... + 8242951.

It is an arithmetic number, because the mean of its divisors is an integer number (9935680446).

Almost surely, 2^72680404291 is an apocalyptic number.

72680404291 is a deficient number, since it is larger than the sum of its proper divisors (6805039277).

72680404291 is a wasteful number, since it uses less digits than its factorization.

72680404291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16477493.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 72680404291 in words is "seventy-two billion, six hundred eighty million, four hundred four thousand, two hundred ninety-one".