11527778541 has 8 divisors (see below), whose sum is σ = 15372383904. Its totient is φ = 7684179440.

The previous prime is 11527778491. The next prime is 11527778551. The reversal of 11527778541 is 14587772511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11527778541 - 2⁷ = 11527778413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11527778551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224415 + ... + 270956.

It is an arithmetic number, because the mean of its divisors is an integer number (1921547988).

Almost surely, 2^11527778541 is an apocalyptic number.

It is an amenable number.

11527778541 is a deficient number, since it is larger than the sum of its proper divisors (3844605363).

11527778541 is an equidigital number, since it uses as much as digits as its factorization.

11527778541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503131.

The product of its digits is 548800, while the sum is 48.

The spelling of 11527778541 in words is "eleven billion, five hundred twenty-seven million, seven hundred seventy-eight thousand, five hundred forty-one".