1990872341152 has 12 divisors (see below), whose sum is σ = 3919529921706. Its totient is φ = 995436170560.

The previous prime is 1990872341137. The next prime is 1990872341179. The reversal of 1990872341152 is 2511432780991.

It can be written as a sum of positive squares in only one way, i.e., 1137029811856 + 853842529296 = 1066316^2 + 924036^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1990872341152.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31107380299 + ... + 31107380362.

Almost surely, 2^{1990872341152} is an apocalyptic number.

It is an amenable number.

1990872341152 is a deficient number, since it is larger than the sum of its proper divisors (1928657580554).

1990872341152 is an equidigital number, since it uses as much as digits as its factorization.

1990872341152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62214760671 (or 62214760663 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 1990872341152 in words is "one trillion, nine hundred ninety billion, eight hundred seventy-two million, three hundred forty-one thousand, one hundred fifty-two".