82928987999 has 16 divisors (see below), whose sum is σ = 98003582880. Its totient is φ = 69590738880.

The previous prime is 82928987993. The next prime is 82928988041. The reversal of 82928987999 is 99978982928.

It is a de Polignac number, because none of the positive numbers 2^k-82928987999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82928987993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691582 + ... + 1739915.

It is an arithmetic number, because the mean of its divisors is an integer number (6125223930).

Almost surely, 2^82928987999 is an apocalyptic number.

82928987999 is a deficient number, since it is larger than the sum of its proper divisors (15074594881).

82928987999 is a wasteful number, since it uses less digits than its factorization.

82928987999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431547 (or 3431521 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 80.

The spelling of 82928987999 in words is "eighty-two billion, nine hundred twenty-eight million, nine hundred eighty-seven thousand, nine hundred ninety-nine".