18997498362 has 16 divisors (see below), whose sum is σ = 38191864320. Its totient is φ = 6299688192.

The previous prime is 18997498349. The next prime is 18997498367. The reversal of 18997498362 is 26389479981.

It is a junction number, because it is equal to n+sod(n) for n = 18997498293 and 18997498302.

It is not an unprimeable number, because it can be changed into a prime (18997498367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8201562 + ... + 8203877.

It is an arithmetic number, because the mean of its divisors is an integer number (2386991520).

Almost surely, 2^18997498362 is an apocalyptic number.

18997498362 is an abundant number, since it is smaller than the sum of its proper divisors (19194365958).

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

18997498362 is a wasteful number, since it uses less digits than its factorization.

18997498362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16405637.

The product of its digits is 47029248, while the sum is 66.

The spelling of 18997498362 in words is "eighteen billion, nine hundred ninety-seven million, four hundred ninety-eight thousand, three hundred sixty-two".