11087196861 has 16 divisors (see below), whose sum is σ = 15922085760. Its totient is φ = 6822029760.

The previous prime is 11087196847. The next prime is 11087196877. The reversal of 11087196861 is 16869178011.

It is not a de Polignac number, because 11087196861 - 2⁶ = 11087196797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11087196861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11087196821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449395 + ... + 473423.

It is an arithmetic number, because the mean of its divisors is an integer number (995130360).

Almost surely, 2^11087196861 is an apocalyptic number.

It is an amenable number.

11087196861 is a deficient number, since it is larger than the sum of its proper divisors (4834888899).

11087196861 is a wasteful number, since it uses less digits than its factorization.

11087196861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35876.

The product of its (nonzero) digits is 145152, while the sum is 48.

The spelling of 11087196861 in words is "eleven billion, eighty-seven million, one hundred ninety-six thousand, eight hundred sixty-one".