11791900541 has 4 divisors (see below), whose sum is σ = 11822214300. Its totient is φ = 11761586784.

The previous prime is 11791900537. The next prime is 11791900583. The reversal of 11791900541 is 14500919711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3003588025 + 8788312516 = 54805^2 + 93746^2 .

It is a cyclic number.

It is not a de Polignac number, because 11791900541 - 2² = 11791900537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11791900495 and 11791900504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11791900531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15156296 + ... + 15157073.

It is an arithmetic number, because the mean of its divisors is an integer number (2955553575).

Almost surely, 2^11791900541 is an apocalyptic number.

It is an amenable number.

11791900541 is a deficient number, since it is larger than the sum of its proper divisors (30313759).

11791900541 is an equidigital number, since it uses as much as digits as its factorization.

11791900541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30313758.

The product of its (nonzero) digits is 11340, while the sum is 38.

The spelling of 11791900541 in words is "eleven billion, seven hundred ninety-one million, nine hundred thousand, five hundred forty-one".