2918799449 has 2 divisors, whose sum is σ = 2918799450. Its totient is φ = 2918799448.

The previous prime is 2918799419. The next prime is 2918799469. The reversal of 2918799449 is 9449978192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1576090000 + 1342709449 = 39700^2 + 36643^2 .

It is a cyclic number.

It is not a de Polignac number, because 2918799449 - 2²⁸ = 2650363993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2918799391 and 2918799400.

It is not a weakly prime, because it can be changed into another prime (2918799419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1459399724 + 1459399725.

It is an arithmetic number, because the mean of its divisors is an integer number (1459399725).

Almost surely, 2^2918799449 is an apocalyptic number.

It is an amenable number.

2918799449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2918799449 is an equidigital number, since it uses as much as digits as its factorization.

2918799449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 62.

The square root of 2918799449 is about 54025.9146058630. The cubic root of 2918799449 is about 1429.1179865830.

The spelling of 2918799449 in words is "two billion, nine hundred eighteen million, seven hundred ninety-nine thousand, four hundred forty-nine".