87962116889 has 2 divisors, whose sum is σ = 87962116890. Its totient is φ = 87962116888.

The previous prime is 87962116861. The next prime is 87962116999. The reversal of 87962116889 is 98861126978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58971265600 + 28990851289 = 242840^2 + 170267^2 .

It is a cyclic number.

It is not a de Polignac number, because 87962116889 - 2²⁴ = 87945339673 is a prime.

It is not a weakly prime, because it can be changed into another prime (87962116819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43981058444 + 43981058445.

It is an arithmetic number, because the mean of its divisors is an integer number (43981058445).

Almost surely, 2^87962116889 is an apocalyptic number.

It is an amenable number.

87962116889 is a deficient number, since it is larger than the sum of its proper divisors (1).

87962116889 is an equidigital number, since it uses as much as digits as its factorization.

87962116889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 65.

The spelling of 87962116889 in words is "eighty-seven billion, nine hundred sixty-two million, one hundred sixteen thousand, eight hundred eighty-nine".