81376848 has 180 divisors, whose sum is σ = 279327360. Its totient is φ = 21990528.

The previous prime is 81376843. The next prime is 81376861. The reversal of 81376848 is 84867318.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81376843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 133761 + ... + 134367.

Almost surely, 2^81376848 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 81376848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139663680).

81376848 is an abundant number, since it is smaller than the sum of its proper divisors (197950512).

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

81376848 is a wasteful number, since it uses less digits than its factorization.

81376848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 638 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 81376848 is about 9020.9117055872. The cubic root of 81376848 is about 433.3448317790.

The spelling of 81376848 in words is "eighty-one million, three hundred seventy-six thousand, eight hundred forty-eight".