87153601999 has 4 divisors (see below), whose sum is σ = 87183018936. Its totient is φ = 87124185064.

The previous prime is 87153601993. The next prime is 87153602047. The reversal of 87153601999 is 99910635178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87153601999 - 2⁵ = 87153601967 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87153601993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14704024 + ... + 14709949.

It is an arithmetic number, because the mean of its divisors is an integer number (21795754734).

Almost surely, 2^87153601999 is an apocalyptic number.

87153601999 is a deficient number, since it is larger than the sum of its proper divisors (29416937).

87153601999 is a wasteful number, since it uses less digits than its factorization.

87153601999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29416936.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 87153601999 in words is "eighty-seven billion, one hundred fifty-three million, six hundred one thousand, nine hundred ninety-nine".