11452542491 has 8 divisors (see below), whose sum is σ = 12334904064. Its totient is φ = 10570380480.

The previous prime is 11452542487. The next prime is 11452542509. The reversal of 11452542491 is 19424525411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11452542491 - 2² = 11452542487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11452542481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82295 + ... + 172271.

It is an arithmetic number, because the mean of its divisors is an integer number (1541863008).

Almost surely, 2^11452542491 is an apocalyptic number.

11452542491 is a deficient number, since it is larger than the sum of its proper divisors (882361573).

11452542491 is an equidigital number, since it uses as much as digits as its factorization.

11452542491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99781.

The product of its digits is 57600, while the sum is 38.

The spelling of 11452542491 in words is "eleven billion, four hundred fifty-two million, five hundred forty-two thousand, four hundred ninety-one".