578721556073 has 16 divisors (see below), whose sum is σ = 616796759040. Its totient is φ = 541432512000.

The previous prime is 578721556067. The next prime is 578721556093. The reversal of 578721556073 is 370655127875.

It is not a de Polignac number, because 578721556073 - 2⁸ = 578721555817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (578721556093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509048 + ... + 1190198.

It is an arithmetic number, because the mean of its divisors is an integer number (38549797440).

Almost surely, 2^578721556073 is an apocalyptic number.

It is an amenable number.

578721556073 is a deficient number, since it is larger than the sum of its proper divisors (38075202967).

578721556073 is a wasteful number, since it uses less digits than its factorization.

578721556073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681728.

The product of its (nonzero) digits is 12348000, while the sum is 56.

The spelling of 578721556073 in words is "five hundred seventy-eight billion, seven hundred twenty-one million, five hundred fifty-six thousand, seventy-three".