323456864978 has 16 divisors (see below), whose sum is σ = 524393562840. Its totient is φ = 148748835456.

The previous prime is 323456864963. The next prime is 323456864981. The reversal of 323456864978 is 879468654323.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 154973706889 + 168483158089 = 393667^2 + 410467^2 .

It is a super-2 number, since 2×323456864978² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22448843 + ... + 22463246.

Almost surely, 2^323456864978 is an apocalyptic number.

323456864978 is a deficient number, since it is larger than the sum of its proper divisors (200936697862).

323456864978 is a wasteful number, since it uses less digits than its factorization.

323456864978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44912381.

The product of its digits is 209018880, while the sum is 65.

The spelling of 323456864978 in words is "three hundred twenty-three billion, four hundred fifty-six million, eight hundred sixty-four thousand, nine hundred seventy-eight".