11493667761 has 16 divisors (see below), whose sum is σ = 15459778560. Its totient is φ = 7595286480.

The previous prime is 11493667747. The next prime is 11493667789. The reversal of 11493667761 is 16776639411.

It is not a de Polignac number, because 11493667761 - 2²³ = 11485279153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11493667561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126720 + ... + 197598.

It is an arithmetic number, because the mean of its divisors is an integer number (966236160).

Almost surely, 2^11493667761 is an apocalyptic number.

It is an amenable number.

11493667761 is a deficient number, since it is larger than the sum of its proper divisors (3966110799).

11493667761 is a wasteful number, since it uses less digits than its factorization.

11493667761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71356.

The product of its digits is 1143072, while the sum is 51.

The spelling of 11493667761 in words is "eleven billion, four hundred ninety-three million, six hundred sixty-seven thousand, seven hundred sixty-one".