73708985220 has 192 divisors, whose sum is σ = 239195690496. Its totient is φ = 16796344320.

The previous prime is 73708985219. The next prime is 73708985227. The reversal of 73708985220 is 2258980737.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (73708985227) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 763297 + ... + 854423.

It is an arithmetic number, because the mean of its divisors is an integer number (1245810888).

Almost surely, 2^73708985220 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 73708985220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119597845248).

73708985220 is an abundant number, since it is smaller than the sum of its proper divisors (165486705276).

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

73708985220 is a wasteful number, since it uses less digits than its factorization.

73708985220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91230 (or 91228 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 73708985220 in words is "seventy-three billion, seven hundred eight million, nine hundred eighty-five thousand, two hundred twenty".