18078160392964 has 27 divisors (see below), whose sum is σ = 36802090549287. Its totient is φ = 7747757514504.

The previous prime is 18078160392913. The next prime is 18078160392977. The reversal of 18078160392964 is 46929306187081.

The square root of 18078160392964 is 4251842.

It is a perfect power (a square), and thus also a powerful number.

It is a junction number, because it is equal to n+sod(n) for n = 18078160392896 and 18078160392905.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59373937 + ... + 59677639.

Almost surely, 2^{18078160392964} is an apocalyptic number.

18078160392964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18078160392964 is the 4251842-nd square number.

It is an amenable number.

18078160392964 is an abundant number, since it is smaller than the sum of its proper divisors (18723930156323).

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

18078160392964 is an frugal number, since it uses more digits than its factorization.

18078160392964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607424 (or 303712 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 18078160392964 in words is "eighteen trillion, seventy-eight billion, one hundred sixty million, three hundred ninety-two thousand, nine hundred sixty-four".