129791587679 has 32 divisors (see below), whose sum is σ = 144988107264. Its totient is φ = 115379043840.

The previous prime is 129791587657. The next prime is 129791587691. The reversal of 129791587679 is 976785197921.

It is not a de Polignac number, because 129791587679 - 2³² = 125496620383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129791587609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116196029 + ... + 116197145.

It is an arithmetic number, because the mean of its divisors is an integer number (4530878352).

Almost surely, 2^129791587679 is an apocalyptic number.

129791587679 is a deficient number, since it is larger than the sum of its proper divisors (15196519585).

129791587679 is a wasteful number, since it uses less digits than its factorization.

129791587679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307.

The product of its digits is 120022560, while the sum is 71.

The spelling of 129791587679 in words is "one hundred twenty-nine billion, seven hundred ninety-one million, five hundred eighty-seven thousand, six hundred seventy-nine".