123251761875 has 80 divisors (see below), whose sum is σ = 226120118400. Its totient is φ = 59198880000.

The previous prime is 123251761799. The next prime is 123251761879. The reversal of 123251761875 is 578167152321.

It is not a de Polignac number, because 123251761875 - 2⁹ = 123251761363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123251761879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2178951 + ... + 2234799.

It is an arithmetic number, because the mean of its divisors is an integer number (2826501480).

Almost surely, 2^123251761875 is an apocalyptic number.

123251761875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123251761875 is a deficient number, since it is larger than the sum of its proper divisors (102868356525).

123251761875 is a wasteful number, since it uses less digits than its factorization.

123251761875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55990 (or 55975 counting only the distinct ones).

The product of its digits is 705600, while the sum is 48.

The spelling of 123251761875 in words is "one hundred twenty-three billion, two hundred fifty-one million, seven hundred sixty-one thousand, eight hundred seventy-five".