1980307451892 has 96 divisors (see below), whose sum is σ = 5842033956864. Its totient is φ = 507120969600.

The previous prime is 1980307451879. The next prime is 1980307451909. The reversal of 1980307451892 is 2981547030891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15027283 + ... + 15158490.

It is an arithmetic number, because the mean of its divisors is an integer number (60854520384).

Almost surely, 2^{1980307451892} is an apocalyptic number.

1980307451892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1980307451892 is an abundant number, since it is smaller than the sum of its proper divisors (3861726504972).

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

1980307451892 is a wasteful number, since it uses less digits than its factorization.

1980307451892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30185869 (or 30185867 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 1980307451892 in words is "one trillion, nine hundred eighty billion, three hundred seven million, four hundred fifty-one thousand, eight hundred ninety-two".