125629952091 has 8 divisors (see below), whose sum is σ = 191436117504. Its totient is φ = 71788544040.

The previous prime is 125629952087. The next prime is 125629952167. The reversal of 125629952091 is 190259926521.

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

It is not a de Polignac number, because 125629952091 - 2² = 125629952087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125629950091) 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, 2991189315 + ... + 2991189356.

It is an arithmetic number, because the mean of its divisors is an integer number (23929514688).

Almost surely, 2^125629952091 is an apocalyptic number.

125629952091 is a deficient number, since it is larger than the sum of its proper divisors (65806165413).

125629952091 is an equidigital number, since it uses as much as digits as its factorization.

125629952091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5982378681.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 125629952091 in words is "one hundred twenty-five billion, six hundred twenty-nine million, nine hundred fifty-two thousand, ninety-one".