11431526272 has 64 divisors (see below), whose sum is σ = 23665305600. Its totient is φ = 5494464000.

The previous prime is 11431526243. The next prime is 11431526287. The reversal of 11431526272 is 27262513411.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589629 + ... + 608707.

It is an arithmetic number, because the mean of its divisors is an integer number (369770400).

Almost surely, 2^11431526272 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 11431526272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11832652800).

11431526272 is an abundant number, since it is smaller than the sum of its proper divisors (12233779328).

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

11431526272 is a wasteful number, since it uses less digits than its factorization.

11431526272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19275 (or 19263 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The spelling of 11431526272 in words is "eleven billion, four hundred thirty-one million, five hundred twenty-six thousand, two hundred seventy-two".