11643921092 has 12 divisors (see below), whose sum is σ = 20377620396. Its totient is φ = 5821743840.

The previous prime is 11643921083. The next prime is 11643921103. The reversal of 11643921092 is 29012934611.

It can be written as a sum of positive squares in 2 ways, for example, as 8010966016 + 3632955076 = 89504^2 + 60274^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167498 + ... + 226590.

It is an arithmetic number, because the mean of its divisors is an integer number (1698135033).

Almost surely, 2^11643921092 is an apocalyptic number.

It is an amenable number.

11643921092 is a deficient number, since it is larger than the sum of its proper divisors (8733699304).

11643921092 is a wasteful number, since it uses less digits than its factorization.

11643921092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108358 (or 108356 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 11643921092 in words is "eleven billion, six hundred forty-three million, nine hundred twenty-one thousand, ninety-two".