1149732507791 has 4 divisors (see below), whose sum is σ = 1313980008912. Its totient is φ = 985485006672.

The previous prime is 1149732507751. The next prime is 1149732507797. The reversal of 1149732507791 is 1977052379411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1149732507791 - 2³⁸ = 874854600847 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 (1149732507797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82123750550 + ... + 82123750563.

It is an arithmetic number, because the mean of its divisors is an integer number (328495002228).

Almost surely, 2^{1149732507791} is an apocalyptic number.

1149732507791 is a deficient number, since it is larger than the sum of its proper divisors (164247501121).

1149732507791 is an equidigital number, since it uses as much as digits as its factorization.

1149732507791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164247501120.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The spelling of 1149732507791 in words is "one trillion, one hundred forty-nine billion, seven hundred thirty-two million, five hundred seven thousand, seven hundred ninety-one".