11546491643 has 4 divisors (see below), whose sum is σ = 11547059448. Its totient is φ = 11545923840.

The previous prime is 11546491637. The next prime is 11546491741. The reversal of 11546491643 is 34619464511.

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 11546491643 - 2¹⁰ = 11546490619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11546491594 and 11546491603.

It is not an unprimeable number, because it can be changed into a prime (11546491343) 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, 252221 + ... + 294462.

It is an arithmetic number, because the mean of its divisors is an integer number (2886764862).

Almost surely, 2^11546491643 is an apocalyptic number.

11546491643 is a deficient number, since it is larger than the sum of its proper divisors (567805).

11546491643 is an equidigital number, since it uses as much as digits as its factorization.

11546491643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567804.

The product of its digits is 311040, while the sum is 44.

The spelling of 11546491643 in words is "eleven billion, five hundred forty-six million, four hundred ninety-one thousand, six hundred forty-three".