79980472769 has 8 divisors (see below), whose sum is σ = 80823673920. Its totient is φ = 79138278000.

The previous prime is 79980472753. The next prime is 79980472783. The reversal of 79980472769 is 96727408997.

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 79980472769 - 2⁴ = 79980472753 is a prime.

It is a super-2 number, since 2×79980472769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79980472699 and 79980472708.

It is not an unprimeable number, because it can be changed into a prime (79980472729) 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, 91277 + ... + 410234.

It is an arithmetic number, because the mean of its divisors is an integer number (10102959240).

Almost surely, 2^79980472769 is an apocalyptic number.

It is an amenable number.

79980472769 is a deficient number, since it is larger than the sum of its proper divisors (843201151).

79980472769 is a wasteful number, since it uses less digits than its factorization.

79980472769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503191.

The product of its (nonzero) digits is 96018048, while the sum is 68.

The spelling of 79980472769 in words is "seventy-nine billion, nine hundred eighty million, four hundred seventy-two thousand, seven hundred sixty-nine".