1617710245399 has 4 divisors (see below), whose sum is σ = 1627397133264. Its totient is φ = 1608023357536.

The previous prime is 1617710245391. The next prime is 1617710245427. The reversal of 1617710245399 is 9935420177161.

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 1617710245399 - 2³ = 1617710245391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617710245391) 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, 4843443682 + ... + 4843444015.

It is an arithmetic number, because the mean of its divisors is an integer number (406849283316).

Almost surely, 2^{1617710245399} is an apocalyptic number.

1617710245399 is a deficient number, since it is larger than the sum of its proper divisors (9686887865).

1617710245399 is an equidigital number, since it uses as much as digits as its factorization.

1617710245399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686887864.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 1617710245399 in words is "one trillion, six hundred seventeen billion, seven hundred ten million, two hundred forty-five thousand, three hundred ninety-nine".