18130669740 has 72 divisors (see below), whose sum is σ = 55031056080. Its totient is φ = 4831795584.

The previous prime is 18130669727. The next prime is 18130669751. The reversal of 18130669740 is 4796603181.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261906 + ... + 323814.

Almost surely, 2^18130669740 is an apocalyptic number.

18130669740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18130669740 is an abundant number, since it is smaller than the sum of its proper divisors (36900386340).

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

18130669740 is a wasteful number, since it uses less digits than its factorization.

18130669740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63551 (or 63546 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 18130669740 in words is "eighteen billion, one hundred thirty million, six hundred sixty-nine thousand, seven hundred forty".