27221717692 has 12 divisors (see below), whose sum is σ = 51302468056. Its totient is φ = 12563869680.

The previous prime is 27221717681. The next prime is 27221717693. The reversal of 27221717692 is 29671712272.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27221717693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261747234 + ... + 261747337.

Almost surely, 2^27221717692 is an apocalyptic number.

It is an amenable number.

27221717692 is a deficient number, since it is larger than the sum of its proper divisors (24080750364).

27221717692 is a wasteful number, since it uses less digits than its factorization.

27221717692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523494588 (or 523494586 counting only the distinct ones).

The product of its digits is 296352, while the sum is 46.

The spelling of 27221717692 in words is "twenty-seven billion, two hundred twenty-one million, seven hundred seventeen thousand, six hundred ninety-two".