323745780943 has 32 divisors (see below), whose sum is σ = 354049847424. Its totient is φ = 294254456832.

The previous prime is 323745780931. The next prime is 323745780949. The reversal of 323745780943 is 349087547323.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 323745780943 - 2³³ = 315155846351 is a prime.

It is a super-2 number, since 2×323745780943² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323745780949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209815030 + ... + 209816572.

It is an arithmetic number, because the mean of its divisors is an integer number (11064057732).

Almost surely, 2^323745780943 is an apocalyptic number.

323745780943 is a deficient number, since it is larger than the sum of its proper divisors (30304066481).

323745780943 is a wasteful number, since it uses less digits than its factorization.

323745780943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 323745780943 in words is "three hundred twenty-three billion, seven hundred forty-five million, seven hundred eighty thousand, nine hundred forty-three".