27930948990 has 32 divisors (see below), whose sum is σ = 76610603520. Its totient is φ = 6384216864.

The previous prime is 27930948989. The next prime is 27930949021. The reversal of 27930948990 is 9984903972.

It is a super-2 number, since 2×27930948990² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66502050 + ... + 66502469.

It is an arithmetic number, because the mean of its divisors is an integer number (2394081360).

Almost surely, 2^27930948990 is an apocalyptic number.

27930948990 is an abundant number, since it is smaller than the sum of its proper divisors (48679654530).

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

27930948990 is a wasteful number, since it uses less digits than its factorization.

27930948990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133004536.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 27930948990 in words is "twenty-seven billion, nine hundred thirty million, nine hundred forty-eight thousand, nine hundred ninety".