23772445013887 has 4 divisors (see below), whose sum is σ = 23820861399336. Its totient is φ = 23724028628440.

The previous prime is 23772445013879. The next prime is 23772445013959. The reversal of 23772445013887 is 78831054427732.

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 23772445013887 - 2³ = 23772445013879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23772445083887) 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, 24208191988 + ... + 24208192969.

It is an arithmetic number, because the mean of its divisors is an integer number (5955215349834).

Almost surely, 2^{23772445013887} is an apocalyptic number.

23772445013887 is a deficient number, since it is larger than the sum of its proper divisors (48416385449).

23772445013887 is an equidigital number, since it uses as much as digits as its factorization.

23772445013887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48416385448.

The product of its (nonzero) digits is 63221760, while the sum is 61.

The spelling of 23772445013887 in words is "twenty-three trillion, seven hundred seventy-two billion, four hundred forty-five million, thirteen thousand, eight hundred eighty-seven".