11571829872 has 40 divisors (see below), whose sum is σ = 29915711760. Its totient is φ = 3854461440.

The previous prime is 11571829793. The next prime is 11571829879. The reversal of 11571829872 is 27892817511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11571829879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20997 + ... + 153572.

It is an arithmetic number, because the mean of its divisors is an integer number (747892794).

Almost surely, 2^11571829872 is an apocalyptic number.

11571829872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11571829872 is an abundant number, since it is smaller than the sum of its proper divisors (18343881888).

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

11571829872 is a wasteful number, since it uses less digits than its factorization.

11571829872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175961 (or 175955 counting only the distinct ones).

The product of its digits is 564480, while the sum is 51.

The spelling of 11571829872 in words is "eleven billion, five hundred seventy-one million, eight hundred twenty-nine thousand, eight hundred seventy-two".