11746431089 has 4 divisors (see below), whose sum is σ = 11921751024. Its totient is φ = 11571111156.

The previous prime is 11746431031. The next prime is 11746431091. The reversal of 11746431089 is 98013464711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11746431089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11746431689) 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, 87659867 + ... + 87660000.

It is an arithmetic number, because the mean of its divisors is an integer number (2980437756).

Almost surely, 2^11746431089 is an apocalyptic number.

It is an amenable number.

11746431089 is a deficient number, since it is larger than the sum of its proper divisors (175319935).

11746431089 is an equidigital number, since it uses as much as digits as its factorization.

11746431089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175319934.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 11746431089 in words is "eleven billion, seven hundred forty-six million, four hundred thirty-one thousand, eighty-nine".