87539656222 has 4 divisors (see below), whose sum is σ = 131309484336. Its totient is φ = 43769828110.

The previous prime is 87539656133. The next prime is 87539656223. The reversal of 87539656222 is 22265693578.

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

It is a super-2 number, since 2×87539656222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87539656223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21884914054 + ... + 21884914057.

It is an arithmetic number, because the mean of its divisors is an integer number (32827371084).

Almost surely, 2^87539656222 is an apocalyptic number.

87539656222 is a deficient number, since it is larger than the sum of its proper divisors (43769828114).

87539656222 is a wasteful number, since it uses less digits than its factorization.

87539656222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43769828113.

The product of its digits is 10886400, while the sum is 55.

The spelling of 87539656222 in words is "eighty-seven billion, five hundred thirty-nine million, six hundred fifty-six thousand, two hundred twenty-two".