18997307162298 has 64 divisors (see below), whose sum is σ = 43249302915840. Its totient is φ = 6177500294400.

The previous prime is 18997307162297. The next prime is 18997307162333. The reversal of 18997307162298 is 89226170379981.

18997307162298 is a `hidden beast` number, since 1 + 8 + 9 + 97 + 307 + 1 + 6 + 229 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (18997307162293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28378078 + ... + 29039798.

It is an arithmetic number, because the mean of its divisors is an integer number (675770358060).

Almost surely, 2^{18997307162298} is an apocalyptic number.

18997307162298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18997307162298 is an abundant number, since it is smaller than the sum of its proper divisors (24251995753542).

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

18997307162298 is a wasteful number, since it uses less digits than its factorization.

18997307162298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674740 (or 674734 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 72.

The spelling of 18997307162298 in words is "eighteen trillion, nine hundred ninety-seven billion, three hundred seven million, one hundred sixty-two thousand, two hundred ninety-eight".