23554422491 has 8 divisors (see below), whose sum is σ = 23692608000. Its totient is φ = 23416567720.

The previous prime is 23554422461. The next prime is 23554422497. The reversal of 23554422491 is 19422445532.

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

It is a cyclic number.

It is not a de Polignac number, because 23554422491 - 2¹⁸ = 23554160347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23554422497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60896 + ... + 225426.

It is an arithmetic number, because the mean of its divisors is an integer number (2961576000).

Almost surely, 2^23554422491 is an apocalyptic number.

23554422491 is a deficient number, since it is larger than the sum of its proper divisors (138185509).

23554422491 is a wasteful number, since it uses less digits than its factorization.

23554422491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165369.

The product of its digits is 345600, while the sum is 41.

The spelling of 23554422491 in words is "twenty-three billion, five hundred fifty-four million, four hundred twenty-two thousand, four hundred ninety-one".