18149671467392 has 32 divisors (see below), whose sum is σ = 38284463256120. Its totient is φ = 8541021865984.

The previous prime is 18149671467379. The next prime is 18149671467419. The reversal of 18149671467392 is 29376417694181.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×18149671467392³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4170418658 + ... + 4170423009.

Almost surely, 2^{18149671467392} is an apocalyptic number.

It is an amenable number.

18149671467392 is an abundant number, since it is smaller than the sum of its proper divisors (20134791788728).

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

18149671467392 is an equidigital number, since it uses as much as digits as its factorization.

18149671467392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340841698 (or 8340841686 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 68.

The spelling of 18149671467392 in words is "eighteen trillion, one hundred forty-nine billion, six hundred seventy-one million, four hundred sixty-seven thousand, three hundred ninety-two".