11542994688 has 72 divisors (see below), whose sum is σ = 30767072896. Its totient is φ = 3841920000.

The previous prime is 11542994651. The next prime is 11542994689. The reversal of 11542994688 is 88649924511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542994689) 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, 519813 + ... + 541563.

Almost surely, 2^11542994688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11542994688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15383536448).

11542994688 is an abundant number, since it is smaller than the sum of its proper divisors (19224078208).

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

11542994688 is an equidigital number, since it uses as much as digits as its factorization.

11542994688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22461 (or 22447 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 57.

The spelling of 11542994688 in words is "eleven billion, five hundred forty-two million, nine hundred ninety-four thousand, six hundred eighty-eight".