79776870229 has 4 divisors (see below), whose sum is σ = 91173565984. Its totient is φ = 68380174476.

The previous prime is 79776870227. The next prime is 79776870253. The reversal of 79776870229 is 92207867797.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92207867797 = 169003 ⋅545599.

It is a cyclic number.

It is not a de Polignac number, because 79776870229 - 2¹ = 79776870227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79776870221) 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, 5698347867 + ... + 5698347880.

It is an arithmetic number, because the mean of its divisors is an integer number (22793391496).

Almost surely, 2^79776870229 is an apocalyptic number.

It is an amenable number.

79776870229 is a deficient number, since it is larger than the sum of its proper divisors (11396695755).

79776870229 is a wasteful number, since it uses less digits than its factorization.

79776870229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396695754.

The product of its (nonzero) digits is 37340352, while the sum is 64.

The spelling of 79776870229 in words is "seventy-nine billion, seven hundred seventy-six million, eight hundred seventy thousand, two hundred twenty-nine".