27974581468 has 12 divisors (see below), whose sum is σ = 48958943992. Its totient is φ = 13986311760.

The previous prime is 27974581463. The next prime is 27974581469. The reversal of 27974581468 is 86418547972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27974581463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178455 + ... + 296302.

Almost surely, 2^27974581468 is an apocalyptic number.

It is an amenable number.

27974581468 is a deficient number, since it is larger than the sum of its proper divisors (20984362524).

27974581468 is a wasteful number, since it uses less digits than its factorization.

27974581468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489492 (or 489490 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 27974581468 in words is "twenty-seven billion, nine hundred seventy-four million, five hundred eighty-one thousand, four hundred sixty-eight".