27527499990 has 24 divisors (see below), whose sum is σ = 71571500208. Its totient is φ = 7340666640.

The previous prime is 27527499971. The next prime is 27527499997. The reversal of 27527499990 is 9999472572.

27527499990 is a `hidden beast` number, since 2 + 7 + 52 + 7 + 499 + 9 + 90 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27527499997) 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, 152930466 + ... + 152930645.

It is an arithmetic number, because the mean of its divisors is an integer number (2982145842).

Almost surely, 2^27527499990 is an apocalyptic number.

27527499990 is an abundant number, since it is smaller than the sum of its proper divisors (44044000218).

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

27527499990 is a wasteful number, since it uses less digits than its factorization.

27527499990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305861124 (or 305861121 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 27527499990 in words is "twenty-seven billion, five hundred twenty-seven million, four hundred ninety-nine thousand, nine hundred ninety".