80239403528 has 8 divisors (see below), whose sum is σ = 150448881630. Its totient is φ = 40119701760.

The previous prime is 80239403527. The next prime is 80239403533. The reversal of 80239403528 is 82530493208.

It can be written as a sum of positive squares in only one way, i.e., 42765412804 + 37473990724 = 206798^2 + 193582^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80239403527) 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 as a sum of consecutive naturals, namely, 5014962713 + ... + 5014962728.

Almost surely, 2^80239403528 is an apocalyptic number.

It is an amenable number.

80239403528 is a deficient number, since it is larger than the sum of its proper divisors (70209478102).

80239403528 is a wasteful number, since it uses less digits than its factorization.

80239403528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10029925447 (or 10029925443 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 80239403528 in words is "eighty billion, two hundred thirty-nine million, four hundred three thousand, five hundred twenty-eight".