80881671450 has 48 divisors (see below), whose sum is σ = 200939281920. Its totient is φ = 21530517120.

The previous prime is 80881671419. The next prime is 80881671457. The reversal of 80881671450 is 5417618808.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80881671450.

It is not an unprimeable number, because it can be changed into a prime (80881671457) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 388474 + ... + 559173.

It is an arithmetic number, because the mean of its divisors is an integer number (4186235040).

Almost surely, 2^80881671450 is an apocalyptic number.

80881671450 is an abundant number, since it is smaller than the sum of its proper divisors (120057610470).

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

80881671450 is a wasteful number, since it uses less digits than its factorization.

80881671450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948231 (or 948226 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 80881671450 in words is "eighty billion, eight hundred eighty-one million, six hundred seventy-one thousand, four hundred fifty".