245126217263 has 4 divisors (see below), whose sum is σ = 251751250200. Its totient is φ = 238501184328.

The previous prime is 245126217241. The next prime is 245126217331. The reversal of 245126217263 is 362712621542.

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

It is a cyclic number.

It is not a de Polignac number, because 245126217263 - 2²⁸ = 244857781807 is a prime.

It is a super-2 number, since 2×245126217263² (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 245126217263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245126211263) 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, 3312516413 + ... + 3312516486.

It is an arithmetic number, because the mean of its divisors is an integer number (62937812550).

Almost surely, 2^245126217263 is an apocalyptic number.

245126217263 is a deficient number, since it is larger than the sum of its proper divisors (6625032937).

245126217263 is an equidigital number, since it uses as much as digits as its factorization.

245126217263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625032936.

The product of its digits is 241920, while the sum is 41.

The spelling of 245126217263 in words is "two hundred forty-five billion, one hundred twenty-six million, two hundred seventeen thousand, two hundred sixty-three".