11587022872 has 8 divisors (see below), whose sum is σ = 21725667900. Its totient is φ = 5793511432.

The previous prime is 11587022851. The next prime is 11587022873. The reversal of 11587022872 is 27822078511.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11587022872² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11587022873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724188922 + ... + 724188937.

Almost surely, 2^11587022872 is an apocalyptic number.

It is an amenable number.

11587022872 is a deficient number, since it is larger than the sum of its proper divisors (10138645028).

11587022872 is a wasteful number, since it uses less digits than its factorization.

11587022872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448377865 (or 1448377861 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 11587022872 in words is "eleven billion, five hundred eighty-seven million, twenty-two thousand, eight hundred seventy-two".