129490983952418 has 8 divisors (see below), whose sum is σ = 211894337376720. Its totient is φ = 58859538160180.

The previous prime is 129490983952403. The next prime is 129490983952453. The reversal of 129490983952418 is 814259389094921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2942976907988 + ... + 2942976908031.

It is an arithmetic number, because the mean of its divisors is an integer number (26486792172090).

Almost surely, 2^{129490983952418} is an apocalyptic number.

129490983952418 is a deficient number, since it is larger than the sum of its proper divisors (82403353424302).

129490983952418 is a wasteful number, since it uses less digits than its factorization.

129490983952418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885953816032.

The product of its (nonzero) digits is 403107840, while the sum is 74.

The spelling of 129490983952418 in words is "one hundred twenty-nine trillion, four hundred ninety billion, nine hundred eighty-three million, nine hundred fifty-two thousand, four hundred eighteen".