11738939445 has 32 divisors (see below), whose sum is σ = 20924380800. Its totient is φ = 6244221312.

The previous prime is 11738939441. The next prime is 11738939447. The reversal of 11738939445 is 54493983711.

11738939445 is a `hidden beast` number, since 1 + 173 + 89 + 394 + 4 + 5 = 666.

It is not a de Polignac number, because 11738939445 - 2² = 11738939441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11738939391 and 11738939400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11738939441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63552 + ... + 165881.

It is an arithmetic number, because the mean of its divisors is an integer number (653886900).

Almost surely, 2^11738939445 is an apocalyptic number.

11738939445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11738939445 is a deficient number, since it is larger than the sum of its proper divisors (9185441355).

11738939445 is a wasteful number, since it uses less digits than its factorization.

11738939445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229826 (or 229820 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 11738939445 in words is "eleven billion, seven hundred thirty-eight million, nine hundred thirty-nine thousand, four hundred forty-five".