87784310113 has 4 divisors (see below), whose sum is σ = 89652061440. Its totient is φ = 85916558788.

The previous prime is 87784310083. The next prime is 87784310129. The reversal of 87784310113 is 31101348778.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87784310113 - 2¹³ = 87784301921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87784310113.

It is not an unprimeable number, because it can be changed into a prime (87784310183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933875593 + ... + 933875686.

It is an arithmetic number, because the mean of its divisors is an integer number (22413015360).

Almost surely, 2^87784310113 is an apocalyptic number.

It is an amenable number.

87784310113 is a deficient number, since it is larger than the sum of its proper divisors (1867751327).

87784310113 is a wasteful number, since it uses less digits than its factorization.

87784310113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867751326.

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 87784310113 in words is "eighty-seven billion, seven hundred eighty-four million, three hundred ten thousand, one hundred thirteen".