616782410117513 has 4 divisors (see below), whose sum is σ = 616801971292368. Its totient is φ = 616762848942660.

The previous prime is 616782410117483. The next prime is 616782410117537. The reversal of 616782410117513 is 315711014287616.

It is a happy number.

616782410117513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 616782410117513 - 2²⁴ = 616782393340297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616782410117593) 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, 9780540131 + ... + 9780603192.

It is an arithmetic number, because the mean of its divisors is an integer number (154200492823092).

Almost surely, 2^{616782410117513} is an apocalyptic number.

It is an amenable number.

616782410117513 is a deficient number, since it is larger than the sum of its proper divisors (19561174855).

616782410117513 is a wasteful number, since it uses less digits than its factorization.

616782410117513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19561174854.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 616782410117513 in words is "six hundred sixteen trillion, seven hundred eighty-two billion, four hundred ten million, one hundred seventeen thousand, five hundred thirteen".