27873431900 has 18 divisors (see below), whose sum is σ = 60485347440. Its totient is φ = 11149372720.

The previous prime is 27873431899. The next prime is 27873431933. The reversal of 27873431900 is 913437872.

It is a super-2 number, since 2×27873431900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139367060 + ... + 139367259.

It is an arithmetic number, because the mean of its divisors is an integer number (3360297080).

Almost surely, 2^27873431900 is an apocalyptic number.

27873431900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27873431900 is an abundant number, since it is smaller than the sum of its proper divisors (32611915540).

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

27873431900 is a wasteful number, since it uses less digits than its factorization.

27873431900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278734333 (or 278734326 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 27873431900 in words is "twenty-seven billion, eight hundred seventy-three million, four hundred thirty-one thousand, nine hundred".