5432939861 has 2 divisors, whose sum is σ = 5432939862. Its totient is φ = 5432939860.

The previous prime is 5432939803. The next prime is 5432939891. The reversal of 5432939861 is 1689392345.

It is a happy number.

5432939861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4721064100 + 711875761 = 68710^2 + 26681^2 .

It is a cyclic number.

It is not a de Polignac number, because 5432939861 - 2²⁶ = 5365830997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5432939891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2716469930 + 2716469931.

It is an arithmetic number, because the mean of its divisors is an integer number (2716469931).

Almost surely, 2^5432939861 is an apocalyptic number.

It is an amenable number.

5432939861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5432939861 is an equidigital number, since it uses as much as digits as its factorization.

5432939861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The square root of 5432939861 is about 73708.4788949006. The cubic root of 5432939861 is about 1757.9707005445.

The spelling of 5432939861 in words is "five billion, four hundred thirty-two million, nine hundred thirty-nine thousand, eight hundred sixty-one".