2688720982 has 4 divisors (see below), whose sum is σ = 4033081476. Its totient is φ = 1344360490.

The previous prime is 2688720971. The next prime is 2688721031. The reversal of 2688720982 is 2890278862.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672180244 + ... + 672180247.

It is an arithmetic number, because the mean of its divisors is an integer number (1008270369).

Almost surely, 2^2688720982 is an apocalyptic number.

2688720982 is a deficient number, since it is larger than the sum of its proper divisors (1344360494).

2688720982 is a wasteful number, since it uses less digits than its factorization.

2688720982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344360493.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 2688720982 is about 51852.8782421960. The cubic root of 2688720982 is about 1390.5349599688.

The spelling of 2688720982 in words is "two billion, six hundred eighty-eight million, seven hundred twenty thousand, nine hundred eighty-two".