84828774969 has 24 divisors (see below), whose sum is σ = 122778032832. Its totient is φ = 56438347680.

The previous prime is 84828774937. The next prime is 84828774971. The reversal of 84828774969 is 96947782848.

84828774969 is a `hidden beast` number, since 8 + 48 + 28 + 77 + 496 + 9 = 666.

It is not a de Polignac number, because 84828774969 - 2⁵ = 84828774937 is a prime.

It is a super-2 number, since 2×84828774969² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84828774897 and 84828774906.

It is not an unprimeable number, because it can be changed into a prime (84828773969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19440582 + ... + 19444944.

It is an arithmetic number, because the mean of its divisors is an integer number (5115751368).

Almost surely, 2^84828774969 is an apocalyptic number.

It is an amenable number.

84828774969 is a deficient number, since it is larger than the sum of its proper divisors (37949257863).

84828774969 is a wasteful number, since it uses less digits than its factorization.

84828774969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8237 (or 8234 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 72.

The spelling of 84828774969 in words is "eighty-four billion, eight hundred twenty-eight million, seven hundred seventy-four thousand, nine hundred sixty-nine".