129079312451 has 4 divisors (see below), whose sum is σ = 129184341600. Its totient is φ = 128974283304.

The previous prime is 129079312447. The next prime is 129079312477. The reversal of 129079312451 is 154213970921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154213970921 = 1013 ⋅152234917.

It is a cyclic number.

It is not a de Polignac number, because 129079312451 - 2² = 129079312447 is a prime.

It is a super-2 number, since 2×129079312451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129079312441) 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, 52512731 + ... + 52515188.

It is an arithmetic number, because the mean of its divisors is an integer number (32296085400).

Almost surely, 2^129079312451 is an apocalyptic number.

129079312451 is a deficient number, since it is larger than the sum of its proper divisors (105029149).

129079312451 is a wasteful number, since it uses less digits than its factorization.

129079312451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105029148.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 129079312451 in words is "one hundred twenty-nine billion, seventy-nine million, three hundred twelve thousand, four hundred fifty-one".