3807138558449 has 2 divisors, whose sum is σ = 3807138558450. Its totient is φ = 3807138558448.

The previous prime is 3807138558373. The next prime is 3807138558467. The reversal of 3807138558449 is 9448558317083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3806615613025 + 522945424 = 1951055^2 + 22868^2 .

It is a cyclic number.

It is not a de Polignac number, because 3807138558449 - 2⁸ = 3807138558193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3807138558469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1903569279224 + 1903569279225.

It is an arithmetic number, because the mean of its divisors is an integer number (1903569279225).

Almost surely, 2^{3807138558449} is an apocalyptic number.

It is an amenable number.

3807138558449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3807138558449 is an equidigital number, since it uses as much as digits as its factorization.

3807138558449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116121600, while the sum is 65.

The spelling of 3807138558449 in words is "three trillion, eight hundred seven billion, one hundred thirty-eight million, five hundred fifty-eight thousand, four hundred forty-nine".