87019368658 has 16 divisors (see below), whose sum is σ = 132328083456. Its totient is φ = 42910106400.

The previous prime is 87019368641. The next prime is 87019368659. The reversal of 87019368658 is 85686391078.

It is a junction number, because it is equal to n+sod(n) for n = 87019368596 and 87019368605.

It is not an unprimeable number, because it can be changed into a prime (87019368659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3055183 + ... + 3083533.

It is an arithmetic number, because the mean of its divisors is an integer number (8270505216).

Almost surely, 2^87019368658 is an apocalyptic number.

87019368658 is a deficient number, since it is larger than the sum of its proper divisors (45308714798).

87019368658 is a wasteful number, since it uses less digits than its factorization.

87019368658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49449.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 87019368658 in words is "eighty-seven billion, nineteen million, three hundred sixty-eight thousand, six hundred fifty-eight".