18377401392 has 240 divisors, whose sum is σ = 61819837920. Its totient is φ = 5211537408.

The previous prime is 18377401363. The next prime is 18377401397. The reversal of 18377401392 is 29310477381.

It is not an unprimeable number, because it can be changed into a prime (18377401397) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2896848 + ... + 2903184.

It is an arithmetic number, because the mean of its divisors is an integer number (257582658).

Almost surely, 2^18377401392 is an apocalyptic number.

18377401392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18377401392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30909918960).

18377401392 is an abundant number, since it is smaller than the sum of its proper divisors (43442436528).

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

18377401392 is a wasteful number, since it uses less digits than its factorization.

18377401392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505 (or 6486 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 18377401392 in words is "eighteen billion, three hundred seventy-seven million, four hundred one thousand, three hundred ninety-two".