2788900999 has 2 divisors, whose sum is σ = 2788901000. Its totient is φ = 2788900998.

The previous prime is 2788900967. The next prime is 2788901069. The reversal of 2788900999 is 9990098872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2788900999 - 2⁵ = 2788900967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2788906999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394450499 + 1394450500.

It is an arithmetic number, because the mean of its divisors is an integer number (1394450500).

Almost surely, 2^2788900999 is an apocalyptic number.

2788900999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788900999 is an equidigital number, since it uses as much as digits as its factorization.

2788900999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 61.

The square root of 2788900999 is about 52810.0463832404. The cubic root of 2788900999 is about 1407.5949475073.

The spelling of 2788900999 in words is "two billion, seven hundred eighty-eight million, nine hundred thousand, nine hundred ninety-nine".