1980316087757 has 8 divisors (see below), whose sum is σ = 2263260652032. Its totient is φ = 1697382090000.

The previous prime is 1980316087753. The next prime is 1980316087781. The reversal of 1980316087757 is 7577806130891.

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

It is a cyclic number.

It is not a de Polignac number, because 1980316087757 - 2² = 1980316087753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1980316087757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980316087753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2235869 + ... + 2993282.

It is an arithmetic number, because the mean of its divisors is an integer number (282907581504).

Almost surely, 2^{1980316087757} is an apocalyptic number.

It is an amenable number.

1980316087757 is a deficient number, since it is larger than the sum of its proper divisors (282944564275).

1980316087757 is an equidigital number, since it uses as much as digits as its factorization.

1980316087757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283259.

The product of its (nonzero) digits is 17781120, while the sum is 62.

The spelling of 1980316087757 in words is "one trillion, nine hundred eighty billion, three hundred sixteen million, eighty-seven thousand, seven hundred fifty-seven".