5815446449 has 2 divisors, whose sum is σ = 5815446450. Its totient is φ = 5815446448.

The previous prime is 5815446443. The next prime is 5815446493. The reversal of 5815446449 is 9446445185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5256975025 + 558471424 = 72505^2 + 23632^2 .

It is a cyclic number.

It is not a de Polignac number, because 5815446449 - 2⁴ = 5815446433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5815446397 and 5815446406.

It is not a weakly prime, because it can be changed into another prime (5815446443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2907723224 + 2907723225.

It is an arithmetic number, because the mean of its divisors is an integer number (2907723225).

Almost surely, 2^5815446449 is an apocalyptic number.

It is an amenable number.

5815446449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5815446449 is an equidigital number, since it uses as much as digits as its factorization.

5815446449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2764800, while the sum is 50.

The square root of 5815446449 is about 76259.0745354282. The cubic root of 5815446449 is about 1798.2953459247.

The spelling of 5815446449 in words is "five billion, eight hundred fifteen million, four hundred forty-six thousand, four hundred forty-nine".