321519338040 has 32 divisors (see below), whose sum is σ = 964558014480. Its totient is φ = 85738490112.

The previous prime is 321519338027. The next prime is 321519338069. The reversal of 321519338040 is 40833915123.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 321519338040.

It is a congruent number.

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, 1339663789 + ... + 1339664028.

Almost surely, 2^321519338040 is an apocalyptic number.

321519338040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321519338040 is an abundant number, since it is smaller than the sum of its proper divisors (643038676440).

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

321519338040 is a wasteful number, since it uses less digits than its factorization.

321519338040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679327831 (or 2679327827 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 321519338040 in words is "three hundred twenty-one billion, five hundred nineteen million, three hundred thirty-eight thousand, forty".