18377379401 has 16 divisors (see below), whose sum is σ = 18705556800. Its totient is φ = 18052320000.

The previous prime is 18377379353. The next prime is 18377379407. The reversal of 18377379401 is 10497377381.

It is a cyclic number.

It is not a de Polignac number, because 18377379401 - 2¹⁰ = 18377378377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18377379401.

It is not an unprimeable number, because it can be changed into a prime (18377379407) 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, 11637830 + ... + 11639408.

It is an arithmetic number, because the mean of its divisors is an integer number (1169097300).

Almost surely, 2^18377379401 is an apocalyptic number.

It is an amenable number.

18377379401 is a deficient number, since it is larger than the sum of its proper divisors (328177399).

18377379401 is a wasteful number, since it uses less digits than its factorization.

18377379401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 889056, while the sum is 50.

The spelling of 18377379401 in words is "eighteen billion, three hundred seventy-seven million, three hundred seventy-nine thousand, four hundred one".