87148513618 has 64 divisors (see below), whose sum is σ = 144091146240. Its totient is φ = 39369028608.

The previous prime is 87148513603. The next prime is 87148513631. The reversal of 87148513618 is 81631584178.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19817796 + ... + 19822192.

It is an arithmetic number, because the mean of its divisors is an integer number (2251424160).

Almost surely, 2^87148513618 is an apocalyptic number.

87148513618 is a deficient number, since it is larger than the sum of its proper divisors (56942632622).

87148513618 is a wasteful number, since it uses less digits than its factorization.

87148513618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699.

The product of its digits is 1290240, while the sum is 52.

The spelling of 87148513618 in words is "eighty-seven billion, one hundred forty-eight million, five hundred thirteen thousand, six hundred eighteen".