2436399023449 has 2 divisors, whose sum is σ = 2436399023450. Its totient is φ = 2436399023448.

The previous prime is 2436399023419. The next prime is 2436399023533. The reversal of 2436399023449 is 9443209936342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2082811808025 + 353587215424 = 1443195^2 + 594632^2 .

It is a cyclic number.

It is not a de Polignac number, because 2436399023449 - 2⁷ = 2436399023321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2436399023393 and 2436399023402.

It is not a weakly prime, because it can be changed into another prime (2436399023419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1218199511724 + 1218199511725.

It is an arithmetic number, because the mean of its divisors is an integer number (1218199511725).

Almost surely, 2^{2436399023449} is an apocalyptic number.

It is an amenable number.

2436399023449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2436399023449 is an equidigital number, since it uses as much as digits as its factorization.

2436399023449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30233088, while the sum is 58.

The spelling of 2436399023449 in words is "two trillion, four hundred thirty-six billion, three hundred ninety-nine million, twenty-three thousand, four hundred forty-nine".