27816909696 has 48 divisors (see below), whose sum is σ = 80046058560. Its totient is φ = 9272302848.

The previous prime is 27816909691. The next prime is 27816909697. The reversal of 27816909696 is 69690961872.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27816909691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12072160 + ... + 12074463.

It is an arithmetic number, because the mean of its divisors is an integer number (1667626220).

Almost surely, 2^27816909696 is an apocalyptic number.

It is an amenable number.

27816909696 is an abundant number, since it is smaller than the sum of its proper divisors (52229148864).

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

27816909696 is a wasteful number, since it uses less digits than its factorization.

27816909696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24146643 (or 24146628 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 27816909696 in words is "twenty-seven billion, eight hundred sixteen million, nine hundred nine thousand, six hundred ninety-six".