87123696607 has 16 divisors (see below), whose sum is σ = 91184666112. Its totient is φ = 83085821280.

The previous prime is 87123696589. The next prime is 87123696617. The reversal of 87123696607 is 70669632178.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 87123696607 - 2¹⁹ = 87123172319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87123696617) 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, 14300632 + ... + 14306722.

It is an arithmetic number, because the mean of its divisors is an integer number (5699041632).

Almost surely, 2^87123696607 is an apocalyptic number.

87123696607 is a deficient number, since it is larger than the sum of its proper divisors (4060969505).

87123696607 is a wasteful number, since it uses less digits than its factorization.

87123696607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 87123696607 in words is "eighty-seven billion, one hundred twenty-three million, six hundred ninety-six thousand, six hundred seven".