79792629797 has 4 divisors (see below), whose sum is σ = 82544099820. Its totient is φ = 77041159776.

The previous prime is 79792629713. The next prime is 79792629799.

79792629797 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24609451876 + 55183177921 = 156874^2 + 234911^2 .

It is a cyclic number.

It is not a de Polignac number, because 79792629797 - 2⁸ = 79792629541 is a prime.

It is a super-2 number, since 2×79792629797² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79792629799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375734968 + ... + 1375735025.

It is an arithmetic number, because the mean of its divisors is an integer number (20636024955).

Almost surely, 2^79792629797 is an apocalyptic number.

It is an amenable number.

79792629797 is a deficient number, since it is larger than the sum of its proper divisors (2751470023).

79792629797 is a wasteful number, since it uses less digits than its factorization.

79792629797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751470022.

The product of its digits is 378071064, while the sum is 74.

The spelling of 79792629797 in words is "seventy-nine billion, seven hundred ninety-two million, six hundred twenty-nine thousand, seven hundred ninety-seven".