125951302791953 has 4 divisors (see below), whose sum is σ = 125951325265920. Its totient is φ = 125951280317988.

The previous prime is 125951302791913. The next prime is 125951302791971. The reversal of 125951302791953 is 359197203159521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 125951302791953 - 2⁶ = 125951302791889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125951302791913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4771976 + ... + 16573302.

It is an arithmetic number, because the mean of its divisors is an integer number (31487831316480).

Almost surely, 2^{125951302791953} is an apocalyptic number.

It is an amenable number.

125951302791953 is a deficient number, since it is larger than the sum of its proper divisors (22473967).

125951302791953 is a wasteful number, since it uses less digits than its factorization.

125951302791953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22473966.

The product of its (nonzero) digits is 22963500, while the sum is 62.

The spelling of 125951302791953 in words is "one hundred twenty-five trillion, nine hundred fifty-one billion, three hundred two million, seven hundred ninety-one thousand, nine hundred fifty-three".