18174965421401 has 16 divisors (see below), whose sum is σ = 19071183680640. Its totient is φ = 17287845843840.

The previous prime is 18174965421377. The next prime is 18174965421409. The reversal of 18174965421401 is 10412456947181.

It is a cyclic number.

It is not a de Polignac number, because 18174965421401 - 2¹⁴ = 18174965405017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18174965421409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3671 + ... + 6029091.

It is an arithmetic number, because the mean of its divisors is an integer number (1191948980040).

Almost surely, 2^{18174965421401} is an apocalyptic number.

It is an amenable number.

18174965421401 is a deficient number, since it is larger than the sum of its proper divisors (896218259239).

18174965421401 is a wasteful number, since it uses less digits than its factorization.

18174965421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026176.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 18174965421401 in words is "eighteen trillion, one hundred seventy-four billion, nine hundred sixty-five million, four hundred twenty-one thousand, four hundred one".