11544027157 has 12 divisors (see below), whose sum is σ = 13235654340. Its totient is φ = 10029197568.

The previous prime is 11544027139. The next prime is 11544027169. The reversal of 11544027157 is 75172044511.

It can be written as a sum of positive squares in 6 ways, for example, as 1962801 + 11542064356 = 1401^2 + 107434^2 .

It is not a de Polignac number, because 11544027157 - 2¹⁵ = 11543994389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544057157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2006182 + ... + 2011927.

It is an arithmetic number, because the mean of its divisors is an integer number (1102971195).

Almost surely, 2^11544027157 is an apocalyptic number.

11544027157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11544027157 is a deficient number, since it is larger than the sum of its proper divisors (1691627183).

11544027157 is a wasteful number, since it uses less digits than its factorization.

11544027157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018152 (or 4018139 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 11544027157 in words is "eleven billion, five hundred forty-four million, twenty-seven thousand, one hundred fifty-seven".