73156730444 has 48 divisors (see below), whose sum is σ = 147497366016. Its totient is φ = 31099411200.

The previous prime is 73156730431. The next prime is 73156730467. The reversal of 73156730444 is 44403765137.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 73156730395 and 73156730404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13792697 + ... + 13797999.

It is an arithmetic number, because the mean of its divisors is an integer number (3072861792).

Almost surely, 2^73156730444 is an apocalyptic number.

It is an amenable number.

73156730444 is an abundant number, since it is smaller than the sum of its proper divisors (74340635572).

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

73156730444 is a wasteful number, since it uses less digits than its factorization.

73156730444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206 (or 9204 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 73156730444 in words is "seventy-three billion, one hundred fifty-six million, seven hundred thirty thousand, four hundred forty-four".