18970978220800 has 54 divisors (see below), whose sum is σ = 46956135327668. Its totient is φ = 7588391285760.

The previous prime is 18970978220767. The next prime is 18970978220819. The reversal of 18970978220800 is 802287907981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1482101274 + ... + 1482114073.

Almost surely, 2^{18970978220800} is an apocalyptic number.

18970978220800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18970978220800 is an abundant number, since it is smaller than the sum of its proper divisors (27985157106868).

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

18970978220800 is an equidigital number, since it uses as much as digits as its factorization.

18970978220800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964215373 (or 2964215354 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 18970978220800 in words is "eighteen trillion, nine hundred seventy billion, nine hundred seventy-eight million, two hundred twenty thousand, eight hundred".