2987813639 has 2 divisors, whose sum is σ = 2987813640. Its totient is φ = 2987813638.

The previous prime is 2987813629. The next prime is 2987813651. The reversal of 2987813639 is 9363187892.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2987813639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987813629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493906819 + 1493906820.

It is an arithmetic number, because the mean of its divisors is an integer number (1493906820).

Almost surely, 2^2987813639 is an apocalyptic number.

2987813639 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987813639 is an equidigital number, since it uses as much as digits as its factorization.

2987813639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 56.

The square root of 2987813639 is about 54660.8968001807. The cubic root of 2987813639 is about 1440.2940562995.

The spelling of 2987813639 in words is "two billion, nine hundred eighty-seven million, eight hundred thirteen thousand, six hundred thirty-nine".