11857029408 has 432 divisors, whose sum is σ = 40656784896. Its totient is φ = 3266565120.

The previous prime is 11857029311. The next prime is 11857029427. The reversal of 11857029408 is 80492075811.

11857029408 is a `hidden beast` number, since 1 + 18 + 570 + 29 + 40 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 62078593 + ... + 62078783.

It is an arithmetic number, because the mean of its divisors is an integer number (94112928).

Almost surely, 2^11857029408 is an apocalyptic number.

11857029408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11857029408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20328392448).

11857029408 is an abundant number, since it is smaller than the sum of its proper divisors (28799755488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11857029408 is a wasteful number, since it uses less digits than its factorization.

11857029408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 11857029408 in words is "eleven billion, eight hundred fifty-seven million, twenty-nine thousand, four hundred eight".