11572743550 has 12 divisors (see below), whose sum is σ = 21525303096. Its totient is φ = 4629097400.

The previous prime is 11572743529. The next prime is 11572743551. The reversal of 11572743550 is 5534727511.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115727386 + ... + 115727485.

It is an arithmetic number, because the mean of its divisors is an integer number (1793775258).

Almost surely, 2^11572743550 is an apocalyptic number.

11572743550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11572743550 is a deficient number, since it is larger than the sum of its proper divisors (9952559546).

11572743550 is a wasteful number, since it uses less digits than its factorization.

11572743550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231454883 (or 231454878 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 11572743550 in words is "eleven billion, five hundred seventy-two million, seven hundred forty-three thousand, five hundred fifty".