11436840468 has 96 divisors (see below), whose sum is σ = 31723664000. Its totient is φ = 3552387840.

The previous prime is 11436840433. The next prime is 11436840469. The reversal of 11436840468 is 86404863411.

11436840468 is a `hidden beast` number, since 1 + 143 + 6 + 8 + 40 + 468 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11436840469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79488 + ... + 170856.

Almost surely, 2^11436840468 is an apocalyptic number.

11436840468 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 11436840468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15861832000).

11436840468 is an abundant number, since it is smaller than the sum of its proper divisors (20286823532).

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

11436840468 is a wasteful number, since it uses less digits than its factorization.

11436840468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91462 (or 91454 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 11436840468 in words is "eleven billion, four hundred thirty-six million, eight hundred forty thousand, four hundred sixty-eight".