80489775250 has 32 divisors (see below), whose sum is σ = 154351924272. Its totient is φ = 31410640000.

The previous prime is 80489775229. The next prime is 80489775269. The reversal of 80489775250 is 5257798408.

It can be written as a sum of positive squares in 8 ways, for example, as 3620549241 + 76869226009 = 60171^2 + 277253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80489775191 and 80489775200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3916081 + ... + 3936580.

Almost surely, 2^80489775250 is an apocalyptic number.

80489775250 is a deficient number, since it is larger than the sum of its proper divisors (73862149022).

80489775250 is a wasteful number, since it uses less digits than its factorization.

80489775250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852719 (or 7852709 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 80489775250 in words is "eighty billion, four hundred eighty-nine million, seven hundred seventy-five thousand, two hundred fifty".