321499634418 has 48 divisors (see below), whose sum is σ = 713890018296. Its totient is φ = 104506183680.

The previous prime is 321499634411. The next prime is 321499634431. The reversal of 321499634418 is 814436994123.

321499634418 is a `hidden beast` number, since 3 + 214 + 9 + 9 + 6 + 3 + 4 + 418 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 291661563249 + 29838071169 = 540057^2 + 172737^2 .

It is not an unprimeable number, because it can be changed into a prime (321499634411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1581646 + ... + 1773302.

Almost surely, 2^321499634418 is an apocalyptic number.

321499634418 is an abundant number, since it is smaller than the sum of its proper divisors (392390383878).

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

321499634418 is a wasteful number, since it uses less digits than its factorization.

321499634418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193979 (or 193976 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 321499634418 in words is "three hundred twenty-one billion, four hundred ninety-nine million, six hundred thirty-four thousand, four hundred eighteen".