27919387228 has 6 divisors (see below), whose sum is σ = 48858927656. Its totient is φ = 13959693612.

The previous prime is 27919387219. The next prime is 27919387229. The reversal of 27919387228 is 82278391972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27919387229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489923400 + ... + 3489923407.

Almost surely, 2^27919387228 is an apocalyptic number.

It is an amenable number.

27919387228 is a deficient number, since it is larger than the sum of its proper divisors (20939540428).

27919387228 is a wasteful number, since it uses less digits than its factorization.

27919387228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979846811 (or 6979846809 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 58.

The spelling of 27919387228 in words is "twenty-seven billion, nine hundred nineteen million, three hundred eighty-seven thousand, two hundred twenty-eight".