27969434496 has 96 divisors (see below), whose sum is σ = 80935194600. Its totient is φ = 9270991872.

The previous prime is 27969434491. The next prime is 27969434543. The reversal of 27969434496 is 69443496972.

27969434496 is a `hidden beast` number, since 27 + 9 + 6 + 94 + 34 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27969434491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138390 + ... + 274026.

Almost surely, 2^27969434496 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 27969434496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40467597300).

27969434496 is an abundant number, since it is smaller than the sum of its proper divisors (52965760104).

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

27969434496 is a wasteful number, since it uses less digits than its factorization.

27969434496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135836 (or 135821 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 27969434496 in words is "twenty-seven billion, nine hundred sixty-nine million, four hundred thirty-four thousand, four hundred ninety-six".