27122194064 has 80 divisors (see below), whose sum is σ = 61994389248. Its totient is φ = 11251892736.

The previous prime is 27122194051. The next prime is 27122194093. The reversal of 27122194064 is 46049122172.

It is a super-2 number, since 2×27122194064² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 799757 + ... + 832979.

Almost surely, 2^27122194064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27122194064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30997194624).

27122194064 is an abundant number, since it is smaller than the sum of its proper divisors (34872195184).

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

27122194064 is a wasteful number, since it uses less digits than its factorization.

27122194064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33472 (or 33466 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 27122194064 in words is "twenty-seven billion, one hundred twenty-two million, one hundred ninety-four thousand, sixty-four".