5616681839 has 4 divisors (see below), whose sum is σ = 5631501960. Its totient is φ = 5601861720.

The previous prime is 5616681821. The next prime is 5616681853. The reversal of 5616681839 is 9381866165.

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 5616681839 - 2²⁰ = 5615633263 is a prime.

It is a super-2 number, since 2×5616681839² = 63094229761104843842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5616681899) 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, 7409492 + ... + 7410249.

It is an arithmetic number, because the mean of its divisors is an integer number (1407875490).

Almost surely, 2^5616681839 is an apocalyptic number.

5616681839 is a deficient number, since it is larger than the sum of its proper divisors (14820121).

5616681839 is a wasteful number, since it uses less digits than its factorization.

5616681839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14820120.

The product of its digits is 1866240, while the sum is 53.

The square root of 5616681839 is about 74944.5250768860. The cubic root of 5616681839 is about 1777.5695735093.

The spelling of 5616681839 in words is "five billion, six hundred sixteen million, six hundred eighty-one thousand, eight hundred thirty-nine".