18392412730 has 8 divisors (see below), whose sum is σ = 33106342932. Its totient is φ = 7356965088.

The previous prime is 18392412713. The next prime is 18392412733. The reversal of 18392412730 is 3721429381.

It can be written as a sum of positive squares in 2 ways, for example, as 16956987961 + 1435424769 = 130219^2 + 37887^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18392412733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919620627 + ... + 919620646.

Almost surely, 2^18392412730 is an apocalyptic number.

18392412730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18392412730 is a deficient number, since it is larger than the sum of its proper divisors (14713930202).

18392412730 is a wasteful number, since it uses less digits than its factorization.

18392412730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839241280.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 18392412730 in words is "eighteen billion, three hundred ninety-two million, four hundred twelve thousand, seven hundred thirty".