828907951922 has 6 divisors (see below), whose sum is σ = 1243363859229. Its totient is φ = 414453332180.

The previous prime is 828907951849. The next prime is 828907951943. The reversal of 828907951922 is 229159709828.

It can be written as a sum of positive squares in 2 ways, for example, as 721291805521 + 107616146401 = 849289^2 + 328049^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=643781.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 965672 + ... + 1609452.

Almost surely, 2^828907951922 is an apocalyptic number.

828907951922 is a deficient number, since it is larger than the sum of its proper divisors (414455907307).

828907951922 is an frugal number, since it uses more digits than its factorization.

828907951922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287564 (or 643783 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 828907951922 in words is "eight hundred twenty-eight billion, nine hundred seven million, nine hundred fifty-one thousand, nine hundred twenty-two".