1617434852263 has 4 divisors (see below), whose sum is σ = 1656884482848. Its totient is φ = 1577985221680.

The previous prime is 1617434852237. The next prime is 1617434852273. The reversal of 1617434852263 is 3622584347161.

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 1617434852263 - 2⁹ = 1617434851751 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 1617434852263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617434852273) 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, 19724815231 + ... + 19724815312.

It is an arithmetic number, because the mean of its divisors is an integer number (414221120712).

Almost surely, 2^{1617434852263} is an apocalyptic number.

1617434852263 is a deficient number, since it is larger than the sum of its proper divisors (39449630585).

1617434852263 is an equidigital number, since it uses as much as digits as its factorization.

1617434852263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39449630584.

The product of its digits is 5806080, while the sum is 52.

The spelling of 1617434852263 in words is "one trillion, six hundred seventeen billion, four hundred thirty-four million, eight hundred fifty-two thousand, two hundred sixty-three".