828780232090 has 8 divisors (see below), whose sum is σ = 1491804417780. Its totient is φ = 331512092832.

The previous prime is 828780232051. The next prime is 828780232117. The reversal of 828780232090 is 90232087828.

It can be written as a sum of positive squares in 2 ways, for example, as 783432103689 + 45348128401 = 885117^2 + 212951^2 .

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, 41439011595 + ... + 41439011614.

Almost surely, 2^828780232090 is an apocalyptic number.

828780232090 is a deficient number, since it is larger than the sum of its proper divisors (663024185690).

828780232090 is a wasteful number, since it uses less digits than its factorization.

828780232090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82878023216.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 828780232090 in words is "eight hundred twenty-eight billion, seven hundred eighty million, two hundred thirty-two thousand, ninety".