123773595959 has 4 divisors (see below), whose sum is σ = 133294641816. Its totient is φ = 114252550104.

The previous prime is 123773595859. The next prime is 123773595973. The reversal of 123773595959 is 959595377321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123773595959 - 2²⁰ = 123772547383 is a prime.

It is a super-2 number, since 2×123773595959² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123773595895 and 123773595904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123773595989) 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, 4760522909 + ... + 4760522934.

It is an arithmetic number, because the mean of its divisors is an integer number (33323660454).

Almost surely, 2^123773595959 is an apocalyptic number.

123773595959 is a deficient number, since it is larger than the sum of its proper divisors (9521045857).

123773595959 is an equidigital number, since it uses as much as digits as its factorization.

123773595959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521045856.

The product of its digits is 80372250, while the sum is 65.

The spelling of 123773595959 in words is "one hundred twenty-three billion, seven hundred seventy-three million, five hundred ninety-five thousand, nine hundred fifty-nine".