867029394021 has 48 divisors (see below), whose sum is σ = 1361166019200. Its totient is φ = 489432125952.

The previous prime is 867029393983. The next prime is 867029394041. The reversal of 867029394021 is 120493920768.

It is not a de Polignac number, because 867029394021 - 2¹⁰ = 867029392997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867029394041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 6122665 + ... + 6262673.

It is an arithmetic number, because the mean of its divisors is an integer number (28357625400).

Almost surely, 2^867029394021 is an apocalyptic number.

It is an amenable number.

867029394021 is a deficient number, since it is larger than the sum of its proper divisors (494136625179).

867029394021 is a wasteful number, since it uses less digits than its factorization.

867029394021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140538 (or 140531 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 867029394021 in words is "eight hundred sixty-seven billion, twenty-nine million, three hundred ninety-four thousand, twenty-one".