27721070046 has 32 divisors (see below), whose sum is σ = 63589555200. Its totient is φ = 8942280120.

The previous prime is 27721070029. The next prime is 27721070087. The reversal of 27721070046 is 64007012772.

It is a happy number.

It is a congruent number.

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, 8278216 + ... + 8281563.

It is an arithmetic number, because the mean of its divisors is an integer number (1987173600).

Almost surely, 2^27721070046 is an apocalyptic number.

27721070046 is an abundant number, since it is smaller than the sum of its proper divisors (35868485154).

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

27721070046 is a wasteful number, since it uses less digits than its factorization.

27721070046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559821 (or 16559815 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The spelling of 27721070046 in words is "twenty-seven billion, seven hundred twenty-one million, seventy thousand, forty-six".