27954263808 has 180 divisors, whose sum is σ = 83597985240. Its totient is φ = 9290889216.

The previous prime is 27954263807. The next prime is 27954263851. The reversal of 27954263808 is 80836245972.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27954263801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7857166 + ... + 7860722.

Almost surely, 2^27954263808 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 27954263808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41798992620).

27954263808 is an abundant number, since it is smaller than the sum of its proper divisors (55643721432).

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

27954263808 is an equidigital number, since it uses as much as digits as its factorization.

27954263808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964 (or 3941 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 27954263808 in words is "twenty-seven billion, nine hundred fifty-four million, two hundred sixty-three thousand, eight hundred eight".