27709042392 has 96 divisors (see below), whose sum is σ = 75965067360. Its totient is φ = 9123840000.

The previous prime is 27709042363. The next prime is 27709042393. The reversal of 27709042392 is 29324090772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27709042393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1960792 + ... + 1974872.

It is an arithmetic number, because the mean of its divisors is an integer number (791302785).

Almost surely, 2^27709042392 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 27709042392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37982533680).

27709042392 is an abundant number, since it is smaller than the sum of its proper divisors (48256024968).

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

27709042392 is a wasteful number, since it uses less digits than its factorization.

27709042392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425 (or 14418 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 27709042392 in words is "twenty-seven billion, seven hundred nine million, forty-two thousand, three hundred ninety-two".