60728807520 has 72 divisors (see below), whose sum is σ = 207237060576. Its totient is φ = 16194348288.

The previous prime is 60728807501. The next prime is 60728807537. The reversal of 60728807520 is 2570882706.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21084952 + ... + 21087831.

It is an arithmetic number, because the mean of its divisors is an integer number (2878292508).

Almost surely, 2^60728807520 is an apocalyptic number.

60728807520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60728807520 is an abundant number, since it is smaller than the sum of its proper divisors (146508253056).

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

60728807520 is a wasteful number, since it uses less digits than its factorization.

60728807520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42172804 (or 42172793 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 60728807520 in words is "sixty billion, seven hundred twenty-eight million, eight hundred seven thousand, five hundred twenty".