87563113915 has 8 divisors (see below), whose sum is σ = 105149071008. Its totient is φ = 70001601600.

The previous prime is 87563113889. The next prime is 87563113933. The reversal of 87563113915 is 51931136578.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87563113915 - 2¹³ = 87563105723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6103311 + ... + 6117640.

It is an arithmetic number, because the mean of its divisors is an integer number (13143633876).

Almost surely, 2^87563113915 is an apocalyptic number.

87563113915 is a deficient number, since it is larger than the sum of its proper divisors (17585957093).

87563113915 is a wasteful number, since it uses less digits than its factorization.

87563113915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222389.

The product of its digits is 680400, while the sum is 49.

The spelling of 87563113915 in words is "eighty-seven billion, five hundred sixty-three million, one hundred thirteen thousand, nine hundred fifteen".