80436400752 has 40 divisors (see below), whose sum is σ = 210424349440. Its totient is φ = 26472738240.

The previous prime is 80436400729. The next prime is 80436400769. The reversal of 80436400752 is 25700463408.

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 80436400752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10602274 + ... + 10609857.

It is an arithmetic number, because the mean of its divisors is an integer number (5260608736).

Almost surely, 2^80436400752 is an apocalyptic number.

It is an amenable number.

80436400752 is an abundant number, since it is smaller than the sum of its proper divisors (129987948688).

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

80436400752 is a wasteful number, since it uses less digits than its factorization.

80436400752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212221 (or 21212215 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 80436400752 in words is "eighty billion, four hundred thirty-six million, four hundred thousand, seven hundred fifty-two".