23026401637 has 4 divisors (see below), whose sum is σ = 23042539296. Its totient is φ = 23010263980.

The previous prime is 23026401617. The next prime is 23026401641. The reversal of 23026401637 is 73610462032.

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 23026401637 - 2¹⁹ = 23025877349 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 (23026401617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8066689 + ... + 8069542.

It is an arithmetic number, because the mean of its divisors is an integer number (5760634824).

Almost surely, 2^23026401637 is an apocalyptic number.

It is an amenable number.

23026401637 is a deficient number, since it is larger than the sum of its proper divisors (16137659).

23026401637 is a wasteful number, since it uses less digits than its factorization.

23026401637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16137658.

The product of its (nonzero) digits is 36288, while the sum is 34.

Adding to 23026401637 its reverse (73610462032), we get a palindrome (96636863669).

The spelling of 23026401637 in words is "twenty-three billion, twenty-six million, four hundred one thousand, six hundred thirty-seven".