11087142784 has 16 divisors (see below), whose sum is σ = 22087667520. Its totient is φ = 5543571328.

The previous prime is 11087142761. The next prime is 11087142821. The reversal of 11087142784 is 48724178011.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×11087142784² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11087142784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43309024 + ... + 43309279.

It is an arithmetic number, because the mean of its divisors is an integer number (1380479220).

Almost surely, 2^11087142784 is an apocalyptic number.

It is an amenable number.

11087142784 is a deficient number, since it is larger than the sum of its proper divisors (11000524736).

11087142784 is an frugal number, since it uses more digits than its factorization.

11087142784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86618317 (or 86618305 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The spelling of 11087142784 in words is "eleven billion, eighty-seven million, one hundred forty-two thousand, seven hundred eighty-four".