79673317749 has 12 divisors (see below), whose sum is σ = 115086340512. Its totient is φ = 53114317800.

The previous prime is 79673317729. The next prime is 79673317751. The reversal of 79673317749 is 94771337697.

It is not a de Polignac number, because 79673317749 - 2²¹ = 79671220597 is a prime.

It is a super-2 number, since 2×79673317749² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79673317729) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 488344 + ... + 630734.

It is an arithmetic number, because the mean of its divisors is an integer number (9590528376).

Almost surely, 2^79673317749 is an apocalyptic number.

It is an amenable number.

79673317749 is a deficient number, since it is larger than the sum of its proper divisors (35413022763).

79673317749 is a wasteful number, since it uses less digits than its factorization.

79673317749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204568 (or 204565 counting only the distinct ones).

The product of its digits is 42007896, while the sum is 63.

The spelling of 79673317749 in words is "seventy-nine billion, six hundred seventy-three million, three hundred seventeen thousand, seven hundred forty-nine".