191748020145728 has 28 divisors (see below), whose sum is σ = 380887057944960. Its totient is φ = 95776477986432.

The previous prime is 191748020145659. The next prime is 191748020145767. The reversal of 191748020145728 is 827541020847191.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523875448 + ... + 1524001271.

It is an arithmetic number, because the mean of its divisors is an integer number (13603109212320).

Almost surely, 2^{191748020145728} is an apocalyptic number.

It is an amenable number.

191748020145728 is a deficient number, since it is larger than the sum of its proper divisors (189139037799232).

191748020145728 is an equidigital number, since it uses as much as digits as its factorization.

191748020145728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047877714 (or 3047877704 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 59.

The spelling of 191748020145728 in words is "one hundred ninety-one trillion, seven hundred forty-eight billion, twenty million, one hundred forty-five thousand, seven hundred twenty-eight".