23267572047721 has 4 divisors (see below), whose sum is σ = 23267708280832. Its totient is φ = 23267435814612.

The previous prime is 23267572047689. The next prime is 23267572047737. The reversal of 23267572047721 is 12774027576232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23267572047721 - 2⁵ = 23267572047689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23267572047751) 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, 67860045 + ... + 68202058.

It is an arithmetic number, because the mean of its divisors is an integer number (5816927070208).

Almost surely, 2^{23267572047721} is an apocalyptic number.

It is an amenable number.

23267572047721 is a deficient number, since it is larger than the sum of its proper divisors (136233111).

23267572047721 is a wasteful number, since it uses less digits than its factorization.

23267572047721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136233110.

The product of its (nonzero) digits is 13829760, while the sum is 55.

The spelling of 23267572047721 in words is "twenty-three trillion, two hundred sixty-seven billion, five hundred seventy-two million, forty-seven thousand, seven hundred twenty-one".