617212817803 has 8 divisors (see below), whose sum is σ = 627154256960. Its totient is φ = 607292829000.

The previous prime is 617212817789. The next prime is 617212817821. The reversal of 617212817803 is 308718212716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 617212817803 - 2¹³ = 617212809611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617212817843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5304573 + ... + 5419678.

It is an arithmetic number, because the mean of its divisors is an integer number (78394282120).

Almost surely, 2^617212817803 is an apocalyptic number.

617212817803 is a deficient number, since it is larger than the sum of its proper divisors (9941439157).

617212817803 is a wasteful number, since it uses less digits than its factorization.

617212817803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725177.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 617212817803 in words is "six hundred seventeen billion, two hundred twelve million, eight hundred seventeen thousand, eight hundred three".