87663689529 has 16 divisors (see below), whose sum is σ = 128946217344. Its totient is φ = 52631107200.

The previous prime is 87663689473. The next prime is 87663689537. The reversal of 87663689529 is 92598636678.

It is not a de Polignac number, because 87663689529 - 2¹³ = 87663681337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87663689539) 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, 27410437 + ... + 27413634.

It is an arithmetic number, because the mean of its divisors is an integer number (8059138584).

Almost surely, 2^87663689529 is an apocalyptic number.

It is an amenable number.

87663689529 is a deficient number, since it is larger than the sum of its proper divisors (41282527815).

87663689529 is a wasteful number, since it uses less digits than its factorization.

87663689529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54824128.

The product of its digits is 235146240, while the sum is 69.

The spelling of 87663689529 in words is "eighty-seven billion, six hundred sixty-three million, six hundred eighty-nine thousand, five hundred twenty-nine".