15418342218 has 16 divisors (see below), whose sum is σ = 31831416576. Its totient is φ = 4973658720.

The previous prime is 15418342189. The next prime is 15418342267. The reversal of 15418342218 is 81224381451.

It is a super-2 number, since 2×15418342218² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41446971 + ... + 41447342.

It is an arithmetic number, because the mean of its divisors is an integer number (1989463536).

Almost surely, 2^15418342218 is an apocalyptic number.

15418342218 is an abundant number, since it is smaller than the sum of its proper divisors (16413074358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15418342218 is a wasteful number, since it uses less digits than its factorization.

15418342218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82894349.

The product of its digits is 61440, while the sum is 39.

The spelling of 15418342218 in words is "fifteen billion, four hundred eighteen million, three hundred forty-two thousand, two hundred eighteen".