75530728750 has 20 divisors (see below), whose sum is σ = 141574800312. Its totient is φ = 30212291000.

The previous prime is 75530728681. The next prime is 75530728753. The reversal of 75530728750 is 5782703557.

It is a junction number, because it is equal to n+sod(n) for n = 75530728694 and 75530728703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75530728753) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30211042 + ... + 30213541.

Almost surely, 2^75530728750 is an apocalyptic number.

75530728750 is a deficient number, since it is larger than the sum of its proper divisors (66044071562).

75530728750 is an equidigital number, since it uses as much as digits as its factorization.

75530728750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60424605 (or 60424590 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 49.

The spelling of 75530728750 in words is "seventy-five billion, five hundred thirty million, seven hundred twenty-eight thousand, seven hundred fifty".