18469744107 has 16 divisors (see below), whose sum is σ = 25432028160. Its totient is φ = 11910664800.

The previous prime is 18469744093. The next prime is 18469744127. The reversal of 18469744107 is 70144796481.

It is a happy number.

It is not a de Polignac number, because 18469744107 - 2¹¹ = 18469742059 is a prime.

It is a super-2 number, since 2×18469744107² (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 18469744107.

It is not an unprimeable number, because it can be changed into a prime (18469744127) 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, 171732 + ... + 257742.

It is an arithmetic number, because the mean of its divisors is an integer number (1589501760).

Almost surely, 2^18469744107 is an apocalyptic number.

18469744107 is a deficient number, since it is larger than the sum of its proper divisors (6962284053).

18469744107 is a wasteful number, since it uses less digits than its factorization.

18469744107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88354.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 18469744107 in words is "eighteen billion, four hundred sixty-nine million, seven hundred forty-four thousand, one hundred seven".