11571842870 has 128 divisors (see below), whose sum is σ = 25482885120. Its totient is φ = 3700270080.

The previous prime is 11571842851. The next prime is 11571842873. The reversal of 11571842870 is 7824817511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11571842873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6264287 + ... + 6266133.

It is an arithmetic number, because the mean of its divisors is an integer number (199085040).

Almost surely, 2^11571842870 is an apocalyptic number.

11571842870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11571842870 is an abundant number, since it is smaller than the sum of its proper divisors (13911042250).

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

11571842870 is a wasteful number, since it uses less digits than its factorization.

11571842870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its (nonzero) digits is 125440, while the sum is 44.

The spelling of 11571842870 in words is "eleven billion, five hundred seventy-one million, eight hundred forty-two thousand, eight hundred seventy".