73028732448 has 96 divisors (see below), whose sum is σ = 219278537856. Its totient is φ = 20847034368.

The previous prime is 73028732423. The next prime is 73028732459. The reversal of 73028732448 is 84423782037.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 73028732397 and 73028732406.

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, 727690 + ... + 821942.

It is an arithmetic number, because the mean of its divisors is an integer number (2284151436).

Almost surely, 2^73028732448 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 73028732448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109639268928).

73028732448 is an abundant number, since it is smaller than the sum of its proper divisors (146249805408).

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

73028732448 is a wasteful number, since it uses less digits than its factorization.

73028732448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95426 (or 95418 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 73028732448 in words is "seventy-three billion, twenty-eight million, seven hundred thirty-two thousand, four hundred forty-eight".