5320319681 has 16 divisors (see below), whose sum is σ = 5591376000. Its totient is φ = 5052715008.

The previous prime is 5320319633. The next prime is 5320319717. The reversal of 5320319681 is 1869130235.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5320319681 - 2³⁰ = 4246577857 is a prime.

It is a super-2 number, since 2×5320319681² = 56611603016071883522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5320312681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061650 + ... + 2064228.

It is an arithmetic number, because the mean of its divisors is an integer number (349461000).

Almost surely, 2^5320319681 is an apocalyptic number.

It is an amenable number.

5320319681 is a deficient number, since it is larger than the sum of its proper divisors (271056319).

5320319681 is a wasteful number, since it uses less digits than its factorization.

5320319681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 5320319681 is about 72940.5215295312. The cubic root of 5320319681 is about 1745.7387130235.

The spelling of 5320319681 in words is "five billion, three hundred twenty million, three hundred nineteen thousand, six hundred eighty-one".