27919769124 has 96 divisors (see below), whose sum is σ = 71463669760. Its totient is φ = 8431682688.

The previous prime is 27919769077. The next prime is 27919769147. The reversal of 27919769124 is 42196791972.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2953197 + ... + 2962635.

Almost surely, 2^27919769124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27919769124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35731834880).

27919769124 is an abundant number, since it is smaller than the sum of its proper divisors (43543900636).

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

27919769124 is a wasteful number, since it uses less digits than its factorization.

27919769124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9809 (or 9807 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The spelling of 27919769124 in words is "twenty-seven billion, nine hundred nineteen million, seven hundred sixty-nine thousand, one hundred twenty-four".