23644135454 has 8 divisors (see below), whose sum is σ = 35634290088. Its totient is φ = 11766038760.

The previous prime is 23644135441. The next prime is 23644135469. The reversal of 23644135454 is 45453144632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23644135454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28013957 + ... + 28014800.

It is an arithmetic number, because the mean of its divisors is an integer number (4454286261).

Almost surely, 2^23644135454 is an apocalyptic number.

23644135454 is a deficient number, since it is larger than the sum of its proper divisors (11990154634).

23644135454 is a wasteful number, since it uses less digits than its factorization.

23644135454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56028970.

The product of its digits is 691200, while the sum is 41.

The spelling of 23644135454 in words is "twenty-three billion, six hundred forty-four million, one hundred thirty-five thousand, four hundred fifty-four".