129279896937 has 16 divisors (see below), whose sum is σ = 191563018560. Its totient is φ = 86169837600.

The previous prime is 129279896927. The next prime is 129279896951. The reversal of 129279896937 is 739698972921.

It is not a de Polignac number, because 129279896937 - 2¹¹ = 129279894889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129279896917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323364 + ... + 602597.

It is an arithmetic number, because the mean of its divisors is an integer number (11972688660).

Almost surely, 2^129279896937 is an apocalyptic number.

It is an amenable number.

129279896937 is a deficient number, since it is larger than the sum of its proper divisors (62283121623).

129279896937 is an equidigital number, since it uses as much as digits as its factorization.

129279896937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931141 (or 931135 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The spelling of 129279896937 in words is "one hundred twenty-nine billion, two hundred seventy-nine million, eight hundred ninety-six thousand, nine hundred thirty-seven".