73321210368 has 840 divisors, whose sum is σ = 270231833520. Its totient is φ = 19752284160.

The previous prime is 73321210363. The next prime is 73321210381. The reversal of 73321210368 is 86301212337.

73321210368 is a `hidden beast` number, since 73 + 3 + 212 + 10 + 368 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (73321210363) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 347493783 + ... + 347493993.

Almost surely, 2^73321210368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73321210368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135115916760).

73321210368 is an abundant number, since it is smaller than the sum of its proper divisors (196910623152).

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

73321210368 is an equidigital number, since it uses as much as digits as its factorization.

73321210368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 73321210368 in words is "seventy-three billion, three hundred twenty-one million, two hundred ten thousand, three hundred sixty-eight".