23444013551 has 32 divisors (see below), whose sum is σ = 28466654208. Its totient is φ = 18872663040.

The previous prime is 23444013547. The next prime is 23444013629. The reversal of 23444013551 is 15531044432.

It is not a de Polignac number, because 23444013551 - 2² = 23444013547 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 (23444013521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6607760 + ... + 6611306.

It is an arithmetic number, because the mean of its divisors is an integer number (889582944).

Almost surely, 2^23444013551 is an apocalyptic number.

23444013551 is a deficient number, since it is larger than the sum of its proper divisors (5022640657).

23444013551 is a wasteful number, since it uses less digits than its factorization.

23444013551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 23444013551 its reverse (15531044432), we get a palindrome (38975057983).

The spelling of 23444013551 in words is "twenty-three billion, four hundred forty-four million, thirteen thousand, five hundred fifty-one".