321477484020 has 768 divisors, whose sum is σ = 1244823552000. Its totient is φ = 61217856000.

The previous prime is 321477483979. The next prime is 321477484057. The reversal of 321477484020 is 20484774123.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 133336615 + ... + 133339025.

It is an arithmetic number, because the mean of its divisors is an integer number (1620864000).

Almost surely, 2^321477484020 is an apocalyptic number.

321477484020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321477484020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622411776000).

321477484020 is an abundant number, since it is smaller than the sum of its proper divisors (923346067980).

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

321477484020 is a wasteful number, since it uses less digits than its factorization.

321477484020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2489 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 321477484020 in words is "three hundred twenty-one billion, four hundred seventy-seven million, four hundred eighty-four thousand, twenty".