18852454401 has 32 divisors (see below), whose sum is σ = 28154044800. Its totient is φ = 11121868800.

The previous prime is 18852454399. The next prime is 18852454403. The reversal of 18852454401 is 10445425881.

It is an interprime number because it is at equal distance from previous prime (18852454399) and next prime (18852454403).

It is not a de Polignac number, because 18852454401 - 2¹ = 18852454399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18852454403) 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, 591981 + ... + 623013.

It is an arithmetic number, because the mean of its divisors is an integer number (879813900).

Almost surely, 2^18852454401 is an apocalyptic number.

18852454401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18852454401 is a deficient number, since it is larger than the sum of its proper divisors (9301590399).

18852454401 is a wasteful number, since it uses less digits than its factorization.

18852454401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31537.

The product of its (nonzero) digits is 204800, while the sum is 42.

The spelling of 18852454401 in words is "eighteen billion, eight hundred fifty-two million, four hundred fifty-four thousand, four hundred one".