73534298280 has 256 divisors, whose sum is σ = 230357191680. Its totient is φ = 18764089344.

The previous prime is 73534298273. The next prime is 73534298281. The reversal of 73534298280 is 8289243537.

It is not an unprimeable number, because it can be changed into a prime (73534298281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78477972 + ... + 78478908.

It is an arithmetic number, because the mean of its divisors is an integer number (899832780).

Almost surely, 2^73534298280 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 73534298280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115178595840).

73534298280 is an abundant number, since it is smaller than the sum of its proper divisors (156822893400).

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

73534298280 is a wasteful number, since it uses less digits than its factorization.

73534298280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 73534298280 in words is "seventy-three billion, five hundred thirty-four million, two hundred ninety-eight thousand, two hundred eighty".