1998796714272 has 192 divisors, whose sum is σ = 5917143052800. Its totient is φ = 656341678080.

The previous prime is 1998796714223. The next prime is 1998796714337. The reversal of 1998796714272 is 2724176978991.

1998796714272 is a `hidden beast` number, since 199 + 8 + 7 + 9 + 6 + 7 + 1 + 427 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 1998796714272.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20790858 + ... + 20886774.

It is an arithmetic number, because the mean of its divisors is an integer number (30818453400).

Almost surely, 2^{1998796714272} is an apocalyptic number.

1998796714272 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 1998796714272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2958571526400).

1998796714272 is an abundant number, since it is smaller than the sum of its proper divisors (3918346338528).

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

1998796714272 is a wasteful number, since it uses less digits than its factorization.

1998796714272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96296 (or 96282 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 72.

The spelling of 1998796714272 in words is "one trillion, nine hundred ninety-eight billion, seven hundred ninety-six million, seven hundred fourteen thousand, two hundred seventy-two".