126172958299 has 8 divisors (see below), whose sum is σ = 130253408640. Its totient is φ = 122093155200.

The previous prime is 126172958273. The next prime is 126172958339. The reversal of 126172958299 is 992859271621.

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

It is a cyclic number.

It is not a de Polignac number, because 126172958299 - 2⁵ = 126172958267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126172952299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251139 + ... + 561619.

It is an arithmetic number, because the mean of its divisors is an integer number (16281676080).

Almost surely, 2^126172958299 is an apocalyptic number.

126172958299 is a deficient number, since it is larger than the sum of its proper divisors (4080450341).

126172958299 is a wasteful number, since it uses less digits than its factorization.

126172958299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323621.

The product of its digits is 9797760, while the sum is 61.

The spelling of 126172958299 in words is "one hundred twenty-six billion, one hundred seventy-two million, nine hundred fifty-eight thousand, two hundred ninety-nine".