11572743552 has 32 divisors (see below), whose sum is σ = 30740101080. Its totient is φ = 3857581056.

The previous prime is 11572743551. The next prime is 11572743571. The reversal of 11572743552 is 25534727511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572743551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15068293 + ... + 15069060.

Almost surely, 2^11572743552 is an apocalyptic number.

11572743552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11572743552 is an abundant number, since it is smaller than the sum of its proper divisors (19167357528).

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

11572743552 is an equidigital number, since it uses as much as digits as its factorization.

11572743552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30137370 (or 30137358 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The spelling of 11572743552 in words is "eleven billion, five hundred seventy-two million, seven hundred forty-three thousand, five hundred fifty-two".