27221131718 has 32 divisors (see below), whose sum is σ = 46539360000. Its totient is φ = 11820249760.

The previous prime is 27221131709. The next prime is 27221131739. The reversal of 27221131718 is 81713112272.

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, 369533 + ... + 437031.

It is an arithmetic number, because the mean of its divisors is an integer number (1454355000).

Almost surely, 2^27221131718 is an apocalyptic number.

27221131718 is a deficient number, since it is larger than the sum of its proper divisors (19318228282).

27221131718 is a wasteful number, since it uses less digits than its factorization.

27221131718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68332.

The product of its digits is 9408, while the sum is 35.

The spelling of 27221131718 in words is "twenty-seven billion, two hundred twenty-one million, one hundred thirty-one thousand, seven hundred eighteen".