245435005193 has 20 divisors (see below), whose sum is σ = 287553315348. Its totient is φ = 209469496320.

The previous prime is 245435005187. The next prime is 245435005201. The reversal of 245435005193 is 391500534542.

It can be written as a sum of positive squares in 2 ways, for example, as 110630742544 + 134804262649 = 332612^2 + 367157^2 .

It is not a de Polignac number, because 245435005193 - 2⁴ = 245435005177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245435005193.

It is not an unprimeable number, because it can be changed into a prime (245435005183) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 340073 + ... + 778793.

Almost surely, 2^245435005193 is an apocalyptic number.

It is an amenable number.

245435005193 is a deficient number, since it is larger than the sum of its proper divisors (42118310155).

245435005193 is an frugal number, since it uses more digits than its factorization.

245435005193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438982 (or 438961 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 245435005193 in words is "two hundred forty-five billion, four hundred thirty-five million, five thousand, one hundred ninety-three".