1290530983780 has 48 divisors (see below), whose sum is σ = 2777636695680. Its totient is φ = 503390055168.

The previous prime is 1290530983751. The next prime is 1290530983843. The reversal of 1290530983780 is 873890350921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685440 + ... + 1746679.

It is an arithmetic number, because the mean of its divisors is an integer number (57867431160).

Almost surely, 2^{1290530983780} is an apocalyptic number.

1290530983780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290530983780 is an abundant number, since it is smaller than the sum of its proper divisors (1487105711900).

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

1290530983780 is a wasteful number, since it uses less digits than its factorization.

1290530983780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432788 (or 2432786 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1290530983780 in words is "one trillion, two hundred ninety billion, five hundred thirty million, nine hundred eighty-three thousand, seven hundred eighty".