980356804911 has 80 divisors (see below), whose sum is σ = 1636029964800. Its totient is φ = 580039574400.

The previous prime is 980356804901. The next prime is 980356804927. The reversal of 980356804911 is 119408653089.

980356804911 is a `hidden beast` number, since 98 + 0 + 3 + 5 + 68 + 0 + 491 + 1 = 666.

It is not a de Polignac number, because 980356804911 - 2⁵ = 980356804879 is a prime.

It is a super-2 number, since 2×980356804911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980356804901) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 6186376 + ... + 6342866.

It is an arithmetic number, because the mean of its divisors is an integer number (20450374560).

Almost surely, 2^980356804911 is an apocalyptic number.

980356804911 is a deficient number, since it is larger than the sum of its proper divisors (655673159889).

980356804911 is a wasteful number, since it uses less digits than its factorization.

980356804911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156682 (or 156673 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 980356804911 in words is "nine hundred eighty billion, three hundred fifty-six million, eight hundred four thousand, nine hundred eleven".