80738528018 has 8 divisors (see below), whose sum is σ = 121325222412. Its totient is φ = 40296787216.

The previous prime is 80738527951. The next prime is 80738528021. The reversal of 80738528018 is 81082583708.

It can be written as a sum of positive squares in 2 ways, for example, as 75491409049 + 5247118969 = 274757^2 + 72437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36237005 + ... + 36239232.

Almost surely, 2^80738528018 is an apocalyptic number.

80738528018 is a deficient number, since it is larger than the sum of its proper divisors (40586694394).

80738528018 is a wasteful number, since it uses less digits than its factorization.

80738528018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72476796.

The product of its (nonzero) digits is 860160, while the sum is 50.

The spelling of 80738528018 in words is "eighty billion, seven hundred thirty-eight million, five hundred twenty-eight thousand, eighteen".