27563076990 has 96 divisors (see below), whose sum is σ = 75997452960. Its totient is φ = 6907041792.

The previous prime is 27563076949. The next prime is 27563077043. The reversal of 27563076990 is 9967036572.

27563076990 is a `hidden beast` number, since 2 + 7 + 563 + 0 + 76 + 9 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 994602 + ... + 1021938.

It is an arithmetic number, because the mean of its divisors is an integer number (791640135).

Almost surely, 2^27563076990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27563076990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37998726480).

27563076990 is an abundant number, since it is smaller than the sum of its proper divisors (48434375970).

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

27563076990 is a wasteful number, since it uses less digits than its factorization.

27563076990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28026 (or 28023 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 27563076990 in words is "twenty-seven billion, five hundred sixty-three million, seventy-six thousand, nine hundred ninety".