18354383402 has 8 divisors (see below), whose sum is σ = 27532159200. Its totient is φ = 9176997004.

The previous prime is 18354383321. The next prime is 18354383431. The reversal of 18354383402 is 20438345381.

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

It is a super-2 number, since 2×18354383402² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18354383402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102749 + ... + 217407.

It is an arithmetic number, because the mean of its divisors is an integer number (3441519900).

Almost surely, 2^18354383402 is an apocalyptic number.

18354383402 is a deficient number, since it is larger than the sum of its proper divisors (9177775798).

18354383402 is a wasteful number, since it uses less digits than its factorization.

18354383402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194700.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 18354383402 in words is "eighteen billion, three hundred fifty-four million, three hundred eighty-three thousand, four hundred two".