2789999982 has 96 divisors (see below), whose sum is σ = 7980021504. Its totient is φ = 682041600.

The previous prime is 2789999951. The next prime is 2789999983. The reversal of 2789999982 is 2899999872.

It is a self number, because there is not a number n which added to its sum of digits gives 2789999982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789999983) 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, 35644 + ... + 82767.

It is an arithmetic number, because the mean of its divisors is an integer number (83125224).

Almost surely, 2^2789999982 is an apocalyptic number.

2789999982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2789999982 is an abundant number, since it is smaller than the sum of its proper divisors (5190021522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2789999982 is a wasteful number, since it uses less digits than its factorization.

2789999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118454 (or 118451 counting only the distinct ones).

The product of its digits is 105815808, while the sum is 72.

The square root of 2789999982 is about 52820.4504145885. The cubic root of 2789999982 is about 1407.7798136095.

It can be divided in two parts, 27 and 89999982, that added together give a palindrome (90000009).

The spelling of 2789999982 in words is "two billion, seven hundred eighty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-two".