87576959991 has 16 divisors (see below), whose sum is σ = 116942531328. Its totient is φ = 58298064000.

The previous prime is 87576959923. The next prime is 87576959993. The reversal of 87576959991 is 19995967578.

It is not a de Polignac number, because 87576959991 - 2¹³ = 87576951799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87576959993) 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, 14234766 + ... + 14240916.

It is an arithmetic number, because the mean of its divisors is an integer number (7308908208).

Almost surely, 2^87576959991 is an apocalyptic number.

87576959991 is a deficient number, since it is larger than the sum of its proper divisors (29365571337).

87576959991 is a wasteful number, since it uses less digits than its factorization.

87576959991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12422.

The product of its digits is 385786800, while the sum is 75.

The spelling of 87576959991 in words is "eighty-seven billion, five hundred seventy-six million, nine hundred fifty-nine thousand, nine hundred ninety-one".