129140126290 has 16 divisors (see below), whose sum is σ = 265659688512. Its totient is φ = 44276614704.

The previous prime is 129140126281. The next prime is 129140126303. The reversal of 129140126290 is 92621041921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922429404 + ... + 922429543.

It is an arithmetic number, because the mean of its divisors is an integer number (16603730532).

Almost surely, 2^129140126290 is an apocalyptic number.

129140126290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129140126290 is an abundant number, since it is smaller than the sum of its proper divisors (136519562222).

129140126290 is a wasteful number, since it uses less digits than its factorization.

129140126290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844858961.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 129140126290 in words is "one hundred twenty-nine billion, one hundred forty million, one hundred twenty-six thousand, two hundred ninety".