577116538 has 16 divisors (see below), whose sum is σ = 885324456. Its totient is φ = 282078720.

The previous prime is 577116511. The next prime is 577116557. The reversal of 577116538 is 835611775.

It can be written as a sum of positive squares in 4 ways, for example, as 364160889 + 212955649 = 19083^2 + 14593^2 .

It is a junction number, because it is equal to n+sod(n) for n = 577116494 and 577116503.

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, 993 + ... + 33988.

Almost surely, 2^577116538 is an apocalyptic number.

577116538 is a deficient number, since it is larger than the sum of its proper divisors (308207918).

577116538 is a wasteful number, since it uses less digits than its factorization.

577116538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35169.

The product of its digits is 176400, while the sum is 43.

The square root of 577116538 is about 24023.2499466663. The cubic root of 577116538 is about 832.5707962530.

The spelling of 577116538 in words is "five hundred seventy-seven million, one hundred sixteen thousand, five hundred thirty-eight".