2787982993 has 8 divisors (see below), whose sum is σ = 2935789920. Its totient is φ = 2640283200.

The previous prime is 2787982963. The next prime is 2787982997. The reversal of 2787982993 is 3992897872.

2787982993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2787982993 - 2⁵ = 2787982961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2787982997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29718 + ... + 80368.

It is an arithmetic number, because the mean of its divisors is an integer number (366973740).

Almost surely, 2^2787982993 is an apocalyptic number.

It is an amenable number.

2787982993 is a deficient number, since it is larger than the sum of its proper divisors (147806927).

2787982993 is a wasteful number, since it uses less digits than its factorization.

2787982993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53567.

The product of its digits is 27433728, while the sum is 64.

The square root of 2787982993 is about 52801.3540830157. The cubic root of 2787982993 is about 1407.4404873318.

The spelling of 2787982993 in words is "two billion, seven hundred eighty-seven million, nine hundred eighty-two thousand, nine hundred ninety-three".