828778770499 has 8 divisors (see below), whose sum is σ = 831916688400. Its totient is φ = 825646596096.

The previous prime is 828778770461. The next prime is 828778770509. The reversal of 828778770499 is 994077877828.

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

It is a cyclic number.

It is not a de Polignac number, because 828778770499 - 2¹⁹ = 828778246211 is a prime.

It is a super-2 number, since 2×828778770499² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828778770419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146622 + ... + 1724035.

It is an arithmetic number, because the mean of its divisors is an integer number (103989586050).

Almost surely, 2^828778770499 is an apocalyptic number.

828778770499 is a deficient number, since it is larger than the sum of its proper divisors (3137917901).

828778770499 is a wasteful number, since it uses less digits than its factorization.

828778770499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871749.

The product of its (nonzero) digits is 796594176, while the sum is 76.

The spelling of 828778770499 in words is "eight hundred twenty-eight billion, seven hundred seventy-eight million, seven hundred seventy thousand, four hundred ninety-nine".