322686891072 has 672 divisors, whose sum is σ = 1201600604160. Its totient is φ = 83102423040.

The previous prime is 322686890993. The next prime is 322686891073. The reversal of 322686891072 is 270198686223.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (322686891073) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 87899797 + ... + 87903467.

Almost surely, 2^322686891072 is an apocalyptic number.

322686891072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322686891072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600800302080).

322686891072 is an abundant number, since it is smaller than the sum of its proper divisors (878913713088).

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

322686891072 is a wasteful number, since it uses less digits than its factorization.

322686891072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 322686891072 in words is "three hundred twenty-two billion, six hundred eighty-six million, eight hundred ninety-one thousand, seventy-two".