71923188757923 has 8 divisors (see below), whose sum is σ = 106552872234000. Its totient is φ = 47948792505264.

The previous prime is 71923188757877. The next prime is 71923188757951. The reversal of 71923188757923 is 32975788132917.

It is a happy number.

71923188757923 is a `hidden beast` number, since 7 + 1 + 9 + 23 + 1 + 8 + 8 + 7 + 579 + 23 = 666.

It is not a de Polignac number, because 71923188757923 - 2⁶ = 71923188757859 is a prime.

It is a super-2 number, since 2×71923188757923² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71923188757723) 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, 1331910902898 + ... + 1331910902951.

It is an arithmetic number, because the mean of its divisors is an integer number (13319109029250).

Almost surely, 2^{71923188757923} is an apocalyptic number.

71923188757923 is a deficient number, since it is larger than the sum of its proper divisors (34629683476077).

71923188757923 is a wasteful number, since it uses less digits than its factorization.

71923188757923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663821805858 (or 2663821805852 counting only the distinct ones).

The product of its digits is 320060160, while the sum is 72.

The spelling of 71923188757923 in words is "seventy-one trillion, nine hundred twenty-three billion, one hundred eighty-eight million, seven hundred fifty-seven thousand, nine hundred twenty-three".