87684719222 has 4 divisors (see below), whose sum is σ = 131527078836. Its totient is φ = 43842359610.

The previous prime is 87684719207. The next prime is 87684719257. The reversal of 87684719222 is 22291748678.

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

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, 21921179804 + ... + 21921179807.

It is an arithmetic number, because the mean of its divisors is an integer number (32881769709).

Almost surely, 2^87684719222 is an apocalyptic number.

87684719222 is a deficient number, since it is larger than the sum of its proper divisors (43842359614).

87684719222 is a wasteful number, since it uses less digits than its factorization.

87684719222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43842359613.

The product of its digits is 5419008, while the sum is 56.

The spelling of 87684719222 in words is "eighty-seven billion, six hundred eighty-four million, seven hundred nineteen thousand, two hundred twenty-two".