322780645494 has 256 divisors, whose sum is σ = 797281920000. Its totient is φ = 96394281984.

The previous prime is 322780645487. The next prime is 322780645501. The reversal of 322780645494 is 494546087223.

It is a happy number.

322780645494 is a `hidden beast` number, since 3 + 2 + 27 + 80 + 6 + 454 + 94 = 666.

322780645494 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (322780645487) and next prime (322780645501).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 322780645494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 375762837 + ... + 375763695.

It is an arithmetic number, because the mean of its divisors is an integer number (3114382500).

Almost surely, 2^322780645494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322780645494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398640960000).

322780645494 is an abundant number, since it is smaller than the sum of its proper divisors (474501274506).

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

322780645494 is a wasteful number, since it uses less digits than its factorization.

322780645494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 322780645494 in words is "three hundred twenty-two billion, seven hundred eighty million, six hundred forty-five thousand, four hundred ninety-four".