245934591449 has 4 divisors (see below), whose sum is σ = 247008541860. Its totient is φ = 244860641040.

The previous prime is 245934591443. The next prime is 245934591467. The reversal of 245934591449 is 944195439542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197929781449 + 48004810000 = 444893^2 + 219100^2 .

It is a cyclic number.

It is not a de Polignac number, because 245934591449 - 2⁴ = 245934591433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245934591443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536974862 + ... + 536975319.

It is an arithmetic number, because the mean of its divisors is an integer number (61752135465).

Almost surely, 2^245934591449 is an apocalyptic number.

It is an amenable number.

245934591449 is a deficient number, since it is larger than the sum of its proper divisors (1073950411).

245934591449 is a wasteful number, since it uses less digits than its factorization.

245934591449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073950410.

The product of its digits is 27993600, while the sum is 59.

The spelling of 245934591449 in words is "two hundred forty-five billion, nine hundred thirty-four million, five hundred ninety-one thousand, four hundred forty-nine".