11693180738 has 6 divisors (see below), whose sum is σ = 17540000499. Its totient is φ = 5846513906.

The previous prime is 11693180731. The next prime is 11693180743. The reversal of 11693180738 is 83708139611.

It can be written as a sum of positive squares in only one way, i.e., 5846590369 + 5846590369 = 76463^2 + 76463^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=76463.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11693180692 and 11693180701.

It is not an unprimeable number, because it can be changed into a prime (11693180731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 114695 + ... + 191157.

Almost surely, 2^11693180738 is an apocalyptic number.

11693180738 is a deficient number, since it is larger than the sum of its proper divisors (5846819761).

11693180738 is an frugal number, since it uses more digits than its factorization.

11693180738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152928 (or 76465 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 11693180738 in words is "eleven billion, six hundred ninety-three million, one hundred eighty thousand, seven hundred thirty-eight".