87866380699 has 2 divisors, whose sum is σ = 87866380700. Its totient is φ = 87866380698.

The previous prime is 87866380649. The next prime is 87866380703. The reversal of 87866380699 is 99608366878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87866380699 - 2¹¹ = 87866378651 is a prime.

It is not a weakly prime, because it can be changed into another prime (87866380619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43933190349 + 43933190350.

It is an arithmetic number, because the mean of its divisors is an integer number (43933190350).

Almost surely, 2^87866380699 is an apocalyptic number.

87866380699 is a deficient number, since it is larger than the sum of its proper divisors (1).

87866380699 is an equidigital number, since it uses as much as digits as its factorization.

87866380699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188116992, while the sum is 70.

The spelling of 87866380699 in words is "eighty-seven billion, eight hundred sixty-six million, three hundred eighty thousand, six hundred ninety-nine".