2755786387 has 2 divisors, whose sum is σ = 2755786388. Its totient is φ = 2755786386.

The previous prime is 2755786379. The next prime is 2755786399. The reversal of 2755786387 is 7836875572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2755786387 - 2³ = 2755786379 is a prime.

It is a super-2 number, since 2×2755786387² = 15188717221549027538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2755786367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377893193 + 1377893194.

It is an arithmetic number, because the mean of its divisors is an integer number (1377893194).

Almost surely, 2^2755786387 is an apocalyptic number.

2755786387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2755786387 is an equidigital number, since it uses as much as digits as its factorization.

2755786387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19756800, while the sum is 58.

The square root of 2755786387 is about 52495.5844524089. The cubic root of 2755786387 is about 1402.0016244352.

The spelling of 2755786387 in words is "two billion, seven hundred fifty-five million, seven hundred eighty-six thousand, three hundred eighty-seven".