11906213472 has 72 divisors (see below), whose sum is σ = 34018934040. Its totient is φ = 3949908480.

The previous prime is 11906213471. The next prime is 11906213507. The reversal of 11906213472 is 27431260911.

11906213472 is a `hidden beast` number, since 119 + 0 + 62 + 13 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11906213471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37197 + ... + 158732.

It is an arithmetic number, because the mean of its divisors is an integer number (472485195).

Almost surely, 2^11906213472 is an apocalyptic number.

11906213472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11906213472 is an abundant number, since it is smaller than the sum of its proper divisors (22112720568).

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

11906213472 is a wasteful number, since it uses less digits than its factorization.

11906213472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196156 (or 196145 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 11906213472 in words is "eleven billion, nine hundred six million, two hundred thirteen thousand, four hundred seventy-two".