5156818087 has 2 divisors, whose sum is σ = 5156818088. Its totient is φ = 5156818086.

The previous prime is 5156818049. The next prime is 5156818099. The reversal of 5156818087 is 7808186515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5156818087 - 2¹⁹ = 5156293799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5156818087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5156818187) 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, 2578409043 + 2578409044.

It is an arithmetic number, because the mean of its divisors is an integer number (2578409044).

Almost surely, 2^5156818087 is an apocalyptic number.

5156818087 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156818087 is an equidigital number, since it uses as much as digits as its factorization.

5156818087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 49.

The square root of 5156818087 is about 71810.9886229120. The cubic root of 5156818087 is about 1727.6692511786.

The spelling of 5156818087 in words is "five billion, one hundred fifty-six million, eight hundred eighteen thousand, eighty-seven".