80431534452 has 72 divisors (see below), whose sum is σ = 196257845056. Its totient is φ = 25634359296.

The previous prime is 80431534439. The next prime is 80431534457. The reversal of 80431534452 is 25443513408.

It is a self number, because there is not a number n which added to its sum of digits gives 80431534452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80431534457) 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, 1000788 + ... + 1078164.

Almost surely, 2^80431534452 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 80431534452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98128922528).

80431534452 is an abundant number, since it is smaller than the sum of its proper divisors (115826310604).

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

80431534452 is a wasteful number, since it uses less digits than its factorization.

80431534452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77545 (or 77514 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 80431534452 in words is "eighty billion, four hundred thirty-one million, five hundred thirty-four thousand, four hundred fifty-two".