111728410564 has 27 divisors (see below), whose sum is σ = 200996491143. Its totient is φ = 54342328608.

The previous prime is 111728410537. The next prime is 111728410579. The reversal of 111728410564 is 465014827111.

The square root of 111728410564 is 334258.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7786650564 + 103941760000 = 88242^2 + 322400^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24732834 + ... + 24737350.

Almost surely, 2^111728410564 is an apocalyptic number.

111728410564 is the 334258-th square number.

It is an amenable number.

111728410564 is a deficient number, since it is larger than the sum of its proper divisors (89268080579).

111728410564 is an frugal number, since it uses more digits than its factorization.

111728410564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112 (or 4556 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 111728410564 in words is "one hundred eleven billion, seven hundred twenty-eight million, four hundred ten thousand, five hundred sixty-four".