27965543694 has 64 divisors (see below), whose sum is σ = 65700046080. Its totient is φ = 7840709120.

The previous prime is 27965543693. The next prime is 27965543717. The reversal of 27965543694 is 49634556972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27965543693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145029 + ... + 277424.

It is an arithmetic number, because the mean of its divisors is an integer number (1026563220).

Almost surely, 2^27965543694 is an apocalyptic number.

27965543694 is an abundant number, since it is smaller than the sum of its proper divisors (37734502386).

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

27965543694 is a wasteful number, since it uses less digits than its factorization.

27965543694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422545.

The product of its digits is 48988800, while the sum is 60.

The spelling of 27965543694 in words is "twenty-seven billion, nine hundred sixty-five million, five hundred forty-three thousand, six hundred ninety-four".