79551964707 has 4 divisors (see below), whose sum is σ = 106069286280. Its totient is φ = 53034643136.

The previous prime is 79551964699. The next prime is 79551964733. The reversal of 79551964707 is 70746915597.

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

It is a cyclic number.

It is not a de Polignac number, because 79551964707 - 2³ = 79551964699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79551964757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13258660782 + ... + 13258660787.

It is an arithmetic number, because the mean of its divisors is an integer number (26517321570).

Almost surely, 2^79551964707 is an apocalyptic number.

79551964707 is a deficient number, since it is larger than the sum of its proper divisors (26517321573).

79551964707 is a wasteful number, since it uses less digits than its factorization.

79551964707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26517321572.

The product of its (nonzero) digits is 16669800, while the sum is 60.

The spelling of 79551964707 in words is "seventy-nine billion, five hundred fifty-one million, nine hundred sixty-four thousand, seven hundred seven".