79289642929 has 4 divisors (see below), whose sum is σ = 90616734784. Its totient is φ = 67962551076.

The previous prime is 79289642911. The next prime is 79289642941. The reversal of 79289642929 is 92924698297.

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: 92924698297 = 23431 ⋅3965887.

It is not a de Polignac number, because 79289642929 - 2¹⁵ = 79289610161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79289642129) 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, 5663545917 + ... + 5663545930.

It is an arithmetic number, because the mean of its divisors is an integer number (22654183696).

Almost surely, 2^79289642929 is an apocalyptic number.

It is an amenable number.

79289642929 is a deficient number, since it is larger than the sum of its proper divisors (11327091855).

79289642929 is a wasteful number, since it uses less digits than its factorization.

79289642929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11327091854.

The product of its digits is 70543872, while the sum is 67.

The spelling of 79289642929 in words is "seventy-nine billion, two hundred eighty-nine million, six hundred forty-two thousand, nine hundred twenty-nine".