2763985987 has 16 divisors (see below), whose sum is σ = 3407769792. Its totient is φ = 2187694080.

The previous prime is 2763985979. The next prime is 2763986081. The reversal of 2763985987 is 7895893672.

It is a cyclic number.

It is not a de Polignac number, because 2763985987 - 2³ = 2763985979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2763985937) 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, 212814 + ... + 225427.

It is an arithmetic number, because the mean of its divisors is an integer number (212985612).

Almost surely, 2^2763985987 is an apocalyptic number.

2763985987 is a deficient number, since it is larger than the sum of its proper divisors (643783805).

2763985987 is a wasteful number, since it uses less digits than its factorization.

2763985987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438318.

The product of its digits is 45722880, while the sum is 64.

The square root of 2763985987 is about 52573.6244423000. The cubic root of 2763985987 is about 1403.3907584347.

The spelling of 2763985987 in words is "two billion, seven hundred sixty-three million, nine hundred eighty-five thousand, nine hundred eighty-seven".