27993051004 has 24 divisors (see below), whose sum is σ = 49745404800. Its totient is φ = 13780614960.

The previous prime is 27993051001. The next prime is 27993051011. The reversal of 27993051004 is 40015039972.

It is a super-2 number, since 2×27993051004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27993051001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143187 + ... + 276565.

It is an arithmetic number, because the mean of its divisors is an integer number (2072725200).

Almost surely, 2^27993051004 is an apocalyptic number.

It is an amenable number.

27993051004 is a deficient number, since it is larger than the sum of its proper divisors (21752353796).

27993051004 is a wasteful number, since it uses less digits than its factorization.

27993051004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134193 (or 134191 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 27993051004 in words is "twenty-seven billion, nine hundred ninety-three million, fifty-one thousand, four".