245839172458 has 24 divisors (see below), whose sum is σ = 406624984164. Its totient is φ = 111388031040.

The previous prime is 245839172441. The next prime is 245839172471. The reversal of 245839172458 is 854271938542.

It can be written as a sum of positive squares in 2 ways, for example, as 245711550249 + 127622209 = 495693^2 + 11297^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1547041 + ... + 1698532.

Almost surely, 2^245839172458 is an apocalyptic number.

245839172458 is a deficient number, since it is larger than the sum of its proper divisors (160785811706).

245839172458 is a wasteful number, since it uses less digits than its factorization.

245839172458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245910 (or 3245899 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 58.

The spelling of 245839172458 in words is "two hundred forty-five billion, eight hundred thirty-nine million, one hundred seventy-two thousand, four hundred fifty-eight".