321420003999976 has 16 divisors (see below), whose sum is σ = 688757151428640. Its totient is φ = 137751430285680.

The previous prime is 321420003999959. The next prime is 321420004000037. The reversal of 321420003999976 is 679999300024123.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2869821464230 + ... + 2869821464341.

It is an arithmetic number, because the mean of its divisors is an integer number (43047321964290).

Almost surely, 2^{321420003999976} is an apocalyptic number.

It is an amenable number.

321420003999976 is an abundant number, since it is smaller than the sum of its proper divisors (367337147428664).

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

321420003999976 is a wasteful number, since it uses less digits than its factorization.

321420003999976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739642928584 (or 5739642928580 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 64.

The spelling of 321420003999976 in words is "three hundred twenty-one trillion, four hundred twenty billion, three million, nine hundred ninety-nine thousand, nine hundred seventy-six".