27221937827156 has 6 divisors (see below), whose sum is σ = 47638391197530. Its totient is φ = 13610968913576.

The previous prime is 27221937827107. The next prime is 27221937827219. The reversal of 27221937827156 is 65172873912272.

It can be written as a sum of positive squares in only one way, i.e., 16150480162756 + 11071457664400 = 4018766^2 + 3327380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402742228391 + ... + 3402742228398.

It is an arithmetic number, because the mean of its divisors is an integer number (7939731866255).

Almost surely, 2^{27221937827156} is an apocalyptic number.

It is an amenable number.

27221937827156 is a deficient number, since it is larger than the sum of its proper divisors (20416453370374).

27221937827156 is a wasteful number, since it uses less digits than its factorization.

27221937827156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805484456793 (or 6805484456791 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 62.

The spelling of 27221937827156 in words is "twenty-seven trillion, two hundred twenty-one billion, nine hundred thirty-seven million, eight hundred twenty-seven thousand, one hundred fifty-six".