2913649909 has 2 divisors, whose sum is σ = 2913649910. Its totient is φ = 2913649908.

The previous prime is 2913649847. The next prime is 2913649957. The reversal of 2913649909 is 9099463192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1946750884 + 966899025 = 44122^2 + 31095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2913649909 - 2¹¹ = 2913647861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2913649009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1456824954 + 1456824955.

It is an arithmetic number, because the mean of its divisors is an integer number (1456824955).

Almost surely, 2^2913649909 is an apocalyptic number.

It is an amenable number.

2913649909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2913649909 is an equidigital number, since it uses as much as digits as its factorization.

2913649909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 52.

The square root of 2913649909 is about 53978.2355121025. The cubic root of 2913649909 is about 1428.2770435247.

The spelling of 2913649909 in words is "two billion, nine hundred thirteen million, six hundred forty-nine thousand, nine hundred nine".