73454809560 has 128 divisors (see below), whose sum is σ = 240543164160. Its totient is φ = 17796441600.

The previous prime is 73454809511. The next prime is 73454809577. The reversal of 73454809560 is 6590845437.

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 congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2282139 + ... + 2314101.

It is an arithmetic number, because the mean of its divisors is an integer number (1879243470).

Almost surely, 2^73454809560 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 73454809560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120271582080).

73454809560 is an abundant number, since it is smaller than the sum of its proper divisors (167088354600).

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

73454809560 is a wasteful number, since it uses less digits than its factorization.

73454809560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33729 (or 33725 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 73454809560 in words is "seventy-three billion, four hundred fifty-four million, eight hundred nine thousand, five hundred sixty".