87297218936 has 8 divisors (see below), whose sum is σ = 163682285520. Its totient is φ = 43648609464.

The previous prime is 87297218903. The next prime is 87297218963. The reversal of 87297218936 is 63981279278.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5456076176 + ... + 5456076191.

It is an arithmetic number, because the mean of its divisors is an integer number (20460285690).

Almost surely, 2^87297218936 is an apocalyptic number.

It is an amenable number.

87297218936 is a deficient number, since it is larger than the sum of its proper divisors (76385066584).

87297218936 is a wasteful number, since it uses less digits than its factorization.

87297218936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10912152373 (or 10912152369 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 62.

The spelling of 87297218936 in words is "eighty-seven billion, two hundred ninety-seven million, two hundred eighteen thousand, nine hundred thirty-six".