11964733668 has 48 divisors (see below), whose sum is σ = 31028240320. Its totient is φ = 3987144000.

The previous prime is 11964733661. The next prime is 11964733709. The reversal of 11964733668 is 86633746911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (11964733661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440523 + ... + 466893.

Almost surely, 2^11964733668 is an apocalyptic number.

11964733668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11964733668 is an abundant number, since it is smaller than the sum of its proper divisors (19063506652).

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

11964733668 is a wasteful number, since it uses less digits than its factorization.

11964733668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30585 (or 30577 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 11964733668 in words is "eleven billion, nine hundred sixty-four million, seven hundred thirty-three thousand, six hundred sixty-eight".