5196388681 has 6 divisors (see below), whose sum is σ = 5711733146. Its totient is φ = 4723989600.

The previous prime is 5196388663. The next prime is 5196388697. The reversal of 5196388681 is 1868836915.

It can be written as a sum of positive squares in only one way, i.e., 5004289081 + 192099600 = 70741^2 + 13860^2 .

It is not a de Polignac number, because 5196388681 - 2²⁹ = 4659517769 is a prime.

It is a super-2 number, since 2×5196388681² = 54004910648049839522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5196388651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21472560 + ... + 21472801.

Almost surely, 2^5196388681 is an apocalyptic number.

It is an amenable number.

5196388681 is a deficient number, since it is larger than the sum of its proper divisors (515344465).

5196388681 is a wasteful number, since it uses less digits than its factorization.

5196388681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42945383 (or 42945372 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 55.

The square root of 5196388681 is about 72085.9811683243. The cubic root of 5196388681 is about 1732.0770580925.

The spelling of 5196388681 in words is "five billion, one hundred ninety-six million, three hundred eighty-eight thousand, six hundred eighty-one".