27690923960 has 128 divisors (see below), whose sum is σ = 75485675520. Its totient is φ = 8924669952.

The previous prime is 27690923957. The next prime is 27690923983. The reversal of 27690923960 is 6932909672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4504649 + ... + 4510791.

It is an arithmetic number, because the mean of its divisors is an integer number (589731840).

Almost surely, 2^27690923960 is an apocalyptic number.

27690923960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27690923960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37742837760).

27690923960 is an abundant number, since it is smaller than the sum of its proper divisors (47794751560).

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

27690923960 is a wasteful number, since it uses less digits than its factorization.

27690923960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 27690923960 in words is "twenty-seven billion, six hundred ninety million, nine hundred twenty-three thousand, nine hundred sixty".