11643157948 has 48 divisors (see below), whose sum is σ = 21811446720. Its totient is φ = 5419065344.

The previous prime is 11643157871. The next prime is 11643157949. The reversal of 11643157948 is 84975134611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643157949) 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 15 ways as a sum of consecutive naturals, for example, 4370865 + ... + 4373527.

It is an arithmetic number, because the mean of its divisors is an integer number (454405140).

Almost surely, 2^11643157948 is an apocalyptic number.

It is an amenable number.

11643157948 is a deficient number, since it is larger than the sum of its proper divisors (10168288772).

11643157948 is a wasteful number, since it uses less digits than its factorization.

11643157948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366 (or 3364 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The spelling of 11643157948 in words is "eleven billion, six hundred forty-three million, one hundred fifty-seven thousand, nine hundred forty-eight".