23237404887 has 4 divisors (see below), whose sum is σ = 30983206520. Its totient is φ = 15491603256.

The previous prime is 23237404831. The next prime is 23237404933. The reversal of 23237404887 is 78840473232.

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

It is not a de Polignac number, because 23237404887 - 2⁶ = 23237404823 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 (23237402887) 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, 3872900812 + ... + 3872900817.

It is an arithmetic number, because the mean of its divisors is an integer number (7745801630).

Almost surely, 2^23237404887 is an apocalyptic number.

23237404887 is a deficient number, since it is larger than the sum of its proper divisors (7745801633).

23237404887 is an equidigital number, since it uses as much as digits as its factorization.

23237404887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745801632.

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 23237404887 in words is "twenty-three billion, two hundred thirty-seven million, four hundred four thousand, eight hundred eighty-seven".