1111948459191 has 24 divisors (see below), whose sum is σ = 1607378420960. Its totient is φ = 740731231296.

The previous prime is 1111948459189. The next prime is 1111948459243. The reversal of 1111948459191 is 1919548491111.

1111948459191 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 9 + 48 + 4 + 591 + 9 + 1 = 666.

It is not a de Polignac number, because 1111948459191 - 2¹ = 1111948459189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111948459151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74058201 + ... + 74073213.

Almost surely, 2^{1111948459191} is an apocalyptic number.

1111948459191 is a deficient number, since it is larger than the sum of its proper divisors (495429961769).

1111948459191 is a wasteful number, since it uses less digits than its factorization.

1111948459191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20775 (or 20772 counting only the distinct ones).

The product of its digits is 466560, while the sum is 54.

The spelling of 1111948459191 in words is "one trillion, one hundred eleven billion, nine hundred forty-eight million, four hundred fifty-nine thousand, one hundred ninety-one".