11346643438 has 36 divisors (see below), whose sum is σ = 19577954880. Its totient is φ = 4928816256.

The previous prime is 11346643417. The next prime is 11346643439. The reversal of 11346643438 is 83434664311.

It is a junction number, because it is equal to n+sod(n) for n = 11346643394 and 11346643403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11346643439) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39603 + ... + 155761.

It is an arithmetic number, because the mean of its divisors is an integer number (543832080).

Almost surely, 2^11346643438 is an apocalyptic number.

11346643438 is a deficient number, since it is larger than the sum of its proper divisors (8231311442).

11346643438 is a wasteful number, since it uses less digits than its factorization.

11346643438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116221 (or 116191 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 11346643438 in words is "eleven billion, three hundred forty-six million, six hundred forty-three thousand, four hundred thirty-eight".