830922921938 has 6 divisors (see below), whose sum is σ = 1246386316599. Its totient is φ = 415460816406.

The previous prime is 830922921893. The next prime is 830922921943. The reversal of 830922921938 is 839129229038.

It can be written as a sum of positive squares in only one way, i.e., 415461460969 + 415461460969 = 644563^2 + 644563^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=644563.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 966845 + ... + 1611407.

Almost surely, 2^830922921938 is an apocalyptic number.

830922921938 is a deficient number, since it is larger than the sum of its proper divisors (415463394661).

830922921938 is an frugal number, since it uses more digits than its factorization.

830922921938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289128 (or 644565 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 830922921938 in words is "eight hundred thirty billion, nine hundred twenty-two million, nine hundred twenty-one thousand, nine hundred thirty-eight".