2774816987 has 2 divisors, whose sum is σ = 2774816988. Its totient is φ = 2774816986.

The previous prime is 2774816969. The next prime is 2774817049. The reversal of 2774816987 is 7896184772.

2774816987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2774816987 - 2¹⁰ = 2774815963 is a prime.

It is a super-2 number, since 2×2774816987² = 15399218622687516338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2774816927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387408493 + 1387408494.

It is an arithmetic number, because the mean of its divisors is an integer number (1387408494).

Almost surely, 2^2774816987 is an apocalyptic number.

2774816987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2774816987 is an equidigital number, since it uses as much as digits as its factorization.

2774816987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9483264, while the sum is 59.

The square root of 2774816987 is about 52676.5316530996. The cubic root of 2774816987 is about 1405.2214857492.

The spelling of 2774816987 in words is "two billion, seven hundred seventy-four million, eight hundred sixteen thousand, nine hundred eighty-seven".