23719123709 has 8 divisors (see below), whose sum is σ = 24087805920. Its totient is φ = 23353066000.

The previous prime is 23719123699. The next prime is 23719123723. The reversal of 23719123709 is 90732191732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23719123709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23719123709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23719123789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637907 + ... + 674064.

It is an arithmetic number, because the mean of its divisors is an integer number (3010975740).

Almost surely, 2^23719123709 is an apocalyptic number.

It is an amenable number.

23719123709 is a deficient number, since it is larger than the sum of its proper divisors (368682211).

23719123709 is a wasteful number, since it uses less digits than its factorization.

23719123709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312251.

The product of its (nonzero) digits is 142884, while the sum is 44.

The spelling of 23719123709 in words is "twenty-three billion, seven hundred nineteen million, one hundred twenty-three thousand, seven hundred nine".