1982597899779 has 48 divisors (see below), whose sum is σ = 3334949122752. Its totient is φ = 1111425030144.

The previous prime is 1982597899753. The next prime is 1982597899811. The reversal of 1982597899779 is 9779987952891.

1982597899779 is a `hidden beast` number, since 1 + 9 + 8 + 2 + 597 + 8 + 9 + 9 + 7 + 7 + 9 = 666.

It is not a de Polignac number, because 1982597899779 - 2⁷ = 1982597899651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1982597899379) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41703727 + ... + 41751239.

It is an arithmetic number, because the mean of its divisors is an integer number (69478106724).

Almost surely, 2^{1982597899779} is an apocalyptic number.

1982597899779 is a deficient number, since it is larger than the sum of its proper divisors (1352351222973).

1982597899779 is a wasteful number, since it uses less digits than its factorization.

1982597899779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60076 (or 60073 counting only the distinct ones).

The product of its digits is 12962436480, while the sum is 90.

The spelling of 1982597899779 in words is "one trillion, nine hundred eighty-two billion, five hundred ninety-seven million, eight hundred ninety-nine thousand, seven hundred seventy-nine".