87158522851 has 2 divisors, whose sum is σ = 87158522852. Its totient is φ = 87158522850.

The previous prime is 87158522849. The next prime is 87158522897. The reversal of 87158522851 is 15822585178.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87158522851 - 2¹ = 87158522849 is a prime.

Together with 87158522849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87158522551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43579261425 + 43579261426.

It is an arithmetic number, because the mean of its divisors is an integer number (43579261426).

Almost surely, 2^87158522851 is an apocalyptic number.

87158522851 is a deficient number, since it is larger than the sum of its proper divisors (1).

87158522851 is an equidigital number, since it uses as much as digits as its factorization.

87158522851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792000, while the sum is 52.

The spelling of 87158522851 in words is "eighty-seven billion, one hundred fifty-eight million, five hundred twenty-two thousand, eight hundred fifty-one".