245864823017 has 16 divisors (see below), whose sum is σ = 284131147200. Its totient is φ = 210400856640.

The previous prime is 245864823007. The next prime is 245864823019. The reversal of 245864823017 is 710328468542.

It is a cyclic number.

It is not a de Polignac number, because 245864823017 - 2²⁰ = 245863774441 is a prime.

It is a super-2 number, since 2×245864823017² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245864823019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3713642 + ... + 3779267.

It is an arithmetic number, because the mean of its divisors is an integer number (17758196700).

Almost surely, 2^245864823017 is an apocalyptic number.

It is an amenable number.

245864823017 is a deficient number, since it is larger than the sum of its proper divisors (38266324183).

245864823017 is a wasteful number, since it uses less digits than its factorization.

245864823017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493096.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 245864823017 in words is "two hundred forty-five billion, eight hundred sixty-four million, eight hundred twenty-three thousand, seventeen".