2868738949 has 2 divisors, whose sum is σ = 2868738950. Its totient is φ = 2868738948.

The previous prime is 2868738941. The next prime is 2868738979. The reversal of 2868738949 is 9498378682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2786256225 + 82482724 = 52785^2 + 9082^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868738949 - 2³ = 2868738941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2868738941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1434369474 + 1434369475.

It is an arithmetic number, because the mean of its divisors is an integer number (1434369475).

Almost surely, 2^2868738949 is an apocalyptic number.

It is an amenable number.

2868738949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2868738949 is an equidigital number, since it uses as much as digits as its factorization.

2868738949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41803776, while the sum is 64.

The square root of 2868738949 is about 53560.6100506706. The cubic root of 2868738949 is about 1420.9005312430.

The spelling of 2868738949 in words is "two billion, eight hundred sixty-eight million, seven hundred thirty-eight thousand, nine hundred forty-nine".