18353379201 has 4 divisors (see below), whose sum is σ = 24471172272. Its totient is φ = 12235586132.

The previous prime is 18353379193. The next prime is 18353379271. The reversal of 18353379201 is 10297335381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10297335381 = 3 ⋅3432445127.

It is a cyclic number.

It is not a de Polignac number, because 18353379201 - 2³ = 18353379193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18353379271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3058896531 + ... + 3058896536.

It is an arithmetic number, because the mean of its divisors is an integer number (6117793068).

Almost surely, 2^18353379201 is an apocalyptic number.

It is an amenable number.

18353379201 is a deficient number, since it is larger than the sum of its proper divisors (6117793071).

18353379201 is an equidigital number, since it uses as much as digits as its factorization.

18353379201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117793070.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 18353379201 in words is "eighteen billion, three hundred fifty-three million, three hundred seventy-nine thousand, two hundred one".