245692604449 has 2 divisors, whose sum is σ = 245692604450. Its totient is φ = 245692604448.

The previous prime is 245692604441. The next prime is 245692604453. The reversal of 245692604449 is 944406296542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243672551424 + 2020053025 = 493632^2 + 44945^2 .

It is a cyclic number.

It is not a de Polignac number, because 245692604449 - 2³ = 245692604441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245692604449.

It is not a weakly prime, because it can be changed into another prime (245692604441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122846302224 + 122846302225.

It is an arithmetic number, because the mean of its divisors is an integer number (122846302225).

Almost surely, 2^245692604449 is an apocalyptic number.

It is an amenable number.

245692604449 is a deficient number, since it is larger than the sum of its proper divisors (1).

245692604449 is an equidigital number, since it uses as much as digits as its factorization.

245692604449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 245692604449 in words is "two hundred forty-five billion, six hundred ninety-two million, six hundred four thousand, four hundred forty-nine".