87952819999 has 4 divisors (see below), whose sum is σ = 95948530920. Its totient is φ = 79957109080.

The previous prime is 87952819993. The next prime is 87952820041. The reversal of 87952819999 is 99991825978.

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 87952819999 - 2⁵ = 87952819967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87952819993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3997855444 + ... + 3997855465.

It is an arithmetic number, because the mean of its divisors is an integer number (23987132730).

Almost surely, 2^87952819999 is an apocalyptic number.

87952819999 is a deficient number, since it is larger than the sum of its proper divisors (7995710921).

87952819999 is a wasteful number, since it uses less digits than its factorization.

87952819999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995710920.

The product of its digits is 264539520, while the sum is 76.

The spelling of 87952819999 in words is "eighty-seven billion, nine hundred fifty-two million, eight hundred nineteen thousand, nine hundred ninety-nine".