864422334557012 has 192 divisors, whose sum is σ = 1907958617671680. Its totient is φ = 332880840000000.

The previous prime is 864422334557011. The next prime is 864422334557029. The reversal of 864422334557012 is 210755433224468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864422334557011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58049978087 + ... + 58049992977.

It is an arithmetic number, because the mean of its divisors is an integer number (9937284467040).

Almost surely, 2^{864422334557012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864422334557012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953979308835840).

864422334557012 is an abundant number, since it is smaller than the sum of its proper divisors (1043536283114668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864422334557012 is a wasteful number, since it uses less digits than its factorization.

864422334557012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18094 (or 18092 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 56.

The spelling of 864422334557012 in words is "eight hundred sixty-four trillion, four hundred twenty-two billion, three hundred thirty-four million, five hundred fifty-seven thousand, twelve".