5131440877 has 2 divisors, whose sum is σ = 5131440878. Its totient is φ = 5131440876.

The previous prime is 5131440869. The next prime is 5131440883. The reversal of 5131440877 is 7780441315.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2845262281 + 2286178596 = 53341^2 + 47814^2 .

It is a cyclic number.

It is not a de Polignac number, because 5131440877 - 2³ = 5131440869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5131441877) 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, 2565720438 + 2565720439.

It is an arithmetic number, because the mean of its divisors is an integer number (2565720439).

Almost surely, 2^5131440877 is an apocalyptic number.

It is an amenable number.

5131440877 is a deficient number, since it is larger than the sum of its proper divisors (1).

5131440877 is an equidigital number, since it uses as much as digits as its factorization.

5131440877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 5131440877 is about 71634.0762277284. The cubic root of 5131440877 is about 1724.8305793982.

The spelling of 5131440877 in words is "five billion, one hundred thirty-one million, four hundred forty thousand, eight hundred seventy-seven".