245144619269 has 12 divisors (see below), whose sum is σ = 269495269260. Its totient is φ = 222826665600.

The previous prime is 245144619263. The next prime is 245144619289. The reversal of 245144619269 is 962916441542.

It can be written as a sum of positive squares in 2 ways, for example, as 42902836900 + 202241782369 = 207130^2 + 449713^2 .

It is not a de Polignac number, because 245144619269 - 2²⁴ = 245127842053 is a prime.

It is a super-2 number, since 2×245144619269² (a number of 24 digits) contains 22 as substring.

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 245144619269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245144619263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719387 + ... + 1003895.

It is an arithmetic number, because the mean of its divisors is an integer number (22457939105).

Almost surely, 2^245144619269 is an apocalyptic number.

It is an amenable number.

245144619269 is a deficient number, since it is larger than the sum of its proper divisors (24350649991).

245144619269 is a wasteful number, since it uses less digits than its factorization.

245144619269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291652 (or 291641 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 245144619269 in words is "two hundred forty-five billion, one hundred forty-four million, six hundred nineteen thousand, two hundred sixty-nine".