121739623826875 has 20 divisors (see below), whose sum is σ = 153835113037320. Its totient is φ = 96297410264000.

The previous prime is 121739623826837. The next prime is 121739623826893. The reversal of 121739623826875 is 578628326937121.

It is not a de Polignac number, because 121739623826875 - 2³¹ = 121737476343227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1094233129 + ... + 1094344378.

It is an arithmetic number, because the mean of its divisors is an integer number (7691755651866).

Almost surely, 2^{121739623826875} is an apocalyptic number.

121739623826875 is a deficient number, since it is larger than the sum of its proper divisors (32095489210445).

121739623826875 is an frugal number, since it uses more digits than its factorization.

121739623826875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188577616 (or 2188577601 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 70.

The spelling of 121739623826875 in words is "one hundred twenty-one trillion, seven hundred thirty-nine billion, six hundred twenty-three million, eight hundred twenty-six thousand, eight hundred seventy-five".