5291689738 has 4 divisors (see below), whose sum is σ = 7937534610. Its totient is φ = 2645844868.

The previous prime is 5291689727. The next prime is 5291689771. The reversal of 5291689738 is 8379861925.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4586946529 + 704743209 = 67727^2 + 26547^2 .

It is a super-3 number, since 3×5291689738³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322922433 + ... + 1322922436.

Almost surely, 2^5291689738 is an apocalyptic number.

5291689738 is a deficient number, since it is larger than the sum of its proper divisors (2645844872).

5291689738 is a wasteful number, since it uses less digits than its factorization.

5291689738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645844871.

The product of its digits is 6531840, while the sum is 58.

The square root of 5291689738 is about 72744.0013884306. The cubic root of 5291689738 is about 1742.6016633665.

The spelling of 5291689738 in words is "five billion, two hundred ninety-one million, six hundred eighty-nine thousand, seven hundred thirty-eight".