27984841974 has 48 divisors (see below), whose sum is σ = 61445329920. Its totient is φ = 9203603760.

The previous prime is 27984841949. The next prime is 27984841987. The reversal of 27984841974 is 47914848972.

27984841974 is a `hidden beast` number, since 2 + 79 + 8 + 484 + 19 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2227699 + ... + 2240225.

It is an arithmetic number, because the mean of its divisors is an integer number (1280111040).

Almost surely, 2^27984841974 is an apocalyptic number.

27984841974 is an abundant number, since it is smaller than the sum of its proper divisors (33460487946).

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

27984841974 is a wasteful number, since it uses less digits than its factorization.

27984841974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185 (or 14182 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 27984841974 in words is "twenty-seven billion, nine hundred eighty-four million, eight hundred forty-one thousand, nine hundred seventy-four".