23673757091 has 4 divisors (see below), whose sum is σ = 23693702472. Its totient is φ = 23653811712.

The previous prime is 23673757043. The next prime is 23673757097. The reversal of 23673757091 is 19075737632.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23673757091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23673757097) 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, 9970910 + ... + 9973283.

It is an arithmetic number, because the mean of its divisors is an integer number (5923425618).

Almost surely, 2^23673757091 is an apocalyptic number.

23673757091 is a deficient number, since it is larger than the sum of its proper divisors (19945381).

23673757091 is a wasteful number, since it uses less digits than its factorization.

23673757091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19945380.

The product of its (nonzero) digits is 1666980, while the sum is 50.

The spelling of 23673757091 in words is "twenty-three billion, six hundred seventy-three million, seven hundred fifty-seven thousand, ninety-one".