1992788264480 has 48 divisors (see below), whose sum is σ = 5070113224344. Its totient is φ = 735798743040.

The previous prime is 1992788264459. The next prime is 1992788264557. The reversal of 1992788264480 is 844628872991.

It can be written as a sum of positive squares in 4 ways, for example, as 1734183469456 + 258604795024 = 1316884^2 + 508532^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1992788264480.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479033561 + ... + 479037720.

Almost surely, 2^{1992788264480} is an apocalyptic number.

1992788264480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992788264480 is an abundant number, since it is smaller than the sum of its proper divisors (3077324959864).

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

1992788264480 is a wasteful number, since it uses less digits than its factorization.

1992788264480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958071309 (or 958071301 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 68.

The spelling of 1992788264480 in words is "one trillion, nine hundred ninety-two billion, seven hundred eighty-eight million, two hundred sixty-four thousand, four hundred eighty".