5427691237 has 2 divisors, whose sum is σ = 5427691238. Its totient is φ = 5427691236.

The previous prime is 5427691229. The next prime is 5427691261. The reversal of 5427691237 is 7321967245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5184144001 + 243547236 = 72001^2 + 15606^2 .

It is a cyclic number.

It is not a de Polignac number, because 5427691237 - 2³ = 5427691229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5427691537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2713845618 + 2713845619.

It is an arithmetic number, because the mean of its divisors is an integer number (2713845619).

Almost surely, 2^5427691237 is an apocalyptic number.

It is an amenable number.

5427691237 is a deficient number, since it is larger than the sum of its proper divisors (1).

5427691237 is an equidigital number, since it uses as much as digits as its factorization.

5427691237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 5427691237 is about 73672.8663552600. The cubic root of 5427691237 is about 1757.4044079944.

The spelling of 5427691237 in words is "five billion, four hundred twenty-seven million, six hundred ninety-one thousand, two hundred thirty-seven".