27813968526 has 16 divisors (see below), whose sum is σ = 55753513344. Its totient is φ = 9250393464.

The previous prime is 27813968519. The next prime is 27813968531. The reversal of 27813968526 is 62586931872.

It is a super-2 number, since 2×27813968526² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5229466 + ... + 5234781.

It is an arithmetic number, because the mean of its divisors is an integer number (3484594584).

Almost surely, 2^27813968526 is an apocalyptic number.

27813968526 is an abundant number, since it is smaller than the sum of its proper divisors (27939544818).

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

27813968526 is a wasteful number, since it uses less digits than its factorization.

27813968526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464695.

The product of its digits is 8709120, while the sum is 57.

The spelling of 27813968526 in words is "twenty-seven billion, eight hundred thirteen million, nine hundred sixty-eight thousand, five hundred twenty-six".