11906972812 has 48 divisors (see below), whose sum is σ = 24476800768. Its totient is φ = 4961165760.

The previous prime is 11906972783. The next prime is 11906972813. The reversal of 11906972812 is 21827960911.

It is not an unprimeable number, because it can be changed into a prime (11906972813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582363 + ... + 1589869.

Almost surely, 2^11906972812 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 11906972812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12238400384).

11906972812 is an abundant number, since it is smaller than the sum of its proper divisors (12569827956).

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

11906972812 is a wasteful number, since it uses less digits than its factorization.

11906972812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086 (or 9084 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 11906972812 in words is "eleven billion, nine hundred six million, nine hundred seventy-two thousand, eight hundred twelve".