85987794663 has 12 divisors (see below), whose sum is σ = 125776803360. Its totient is φ = 56599560576.

The previous prime is 85987794661. The next prime is 85987794727. The reversal of 85987794663 is 36649778958.

85987794663 is a `hidden beast` number, since 8 + 5 + 98 + 7 + 79 + 466 + 3 = 666.

It is not a de Polignac number, because 85987794663 - 2¹ = 85987794661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85987794591 and 85987794600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85987794661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60468906 + ... + 60470327.

It is an arithmetic number, because the mean of its divisors is an integer number (10481400280).

Almost surely, 2^85987794663 is an apocalyptic number.

85987794663 is a deficient number, since it is larger than the sum of its proper divisors (39789008697).

85987794663 is a wasteful number, since it uses less digits than its factorization.

85987794663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120939318 (or 120939315 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 72.

The spelling of 85987794663 in words is "eighty-five billion, nine hundred eighty-seven million, seven hundred ninety-four thousand, six hundred sixty-three".