85527790686 has 48 divisors (see below), whose sum is σ = 200836044864. Its totient is φ = 26148612672.

The previous prime is 85527790681. The next prime is 85527790703. The reversal of 85527790686 is 68609772558.

85527790686 is a `hidden beast` number, since 8 + 552 + 7 + 79 + 0 + 6 + 8 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85527790681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127286 + ... + 1200761.

It is an arithmetic number, because the mean of its divisors is an integer number (4184084268).

Almost surely, 2^85527790686 is an apocalyptic number.

85527790686 is an abundant number, since it is smaller than the sum of its proper divisors (115308254178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85527790686 is a wasteful number, since it uses less digits than its factorization.

85527790686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328225 (or 2328222 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 85527790686 in words is "eighty-five billion, five hundred twenty-seven million, seven hundred ninety thousand, six hundred eighty-six".