2807139887 has 2 divisors, whose sum is σ = 2807139888. Its totient is φ = 2807139886.

The previous prime is 2807139847. The next prime is 2807139911. The reversal of 2807139887 is 7889317082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2807139887 - 2¹⁰ = 2807138863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2807139827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403569943 + 1403569944.

It is an arithmetic number, because the mean of its divisors is an integer number (1403569944).

Almost surely, 2^2807139887 is an apocalyptic number.

2807139887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2807139887 is an equidigital number, since it uses as much as digits as its factorization.

2807139887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 2807139887 is about 52982.4488580888. The cubic root of 2807139887 is about 1410.6567513745.

The spelling of 2807139887 in words is "two billion, eight hundred seven million, one hundred thirty-nine thousand, eight hundred eighty-seven".