1980576381635 has 8 divisors (see below), whose sum is σ = 2378329634736. Its totient is φ = 1583369120800.

The previous prime is 1980576381523. The next prime is 1980576381709. The reversal of 1980576381635 is 5361836750891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1980576381635 - 2¹⁰ = 1980576380611 is a prime.

It is a Duffinian number.

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, 136490084 + ... + 136504593.

It is an arithmetic number, because the mean of its divisors is an integer number (297291204342).

Almost surely, 2^{1980576381635} is an apocalyptic number.

1980576381635 is a deficient number, since it is larger than the sum of its proper divisors (397753253101).

1980576381635 is a wasteful number, since it uses less digits than its factorization.

1980576381635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272996133.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 1980576381635 in words is "one trillion, nine hundred eighty billion, five hundred seventy-six million, three hundred eighty-one thousand, six hundred thirty-five".