87214668515 has 64 divisors (see below), whose sum is σ = 118473062400. Its totient is φ = 61207985664.

The previous prime is 87214668487. The next prime is 87214668533. The reversal of 87214668515 is 51586641278.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87214668515 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23512481 + ... + 23516189.

It is an arithmetic number, because the mean of its divisors is an integer number (1851141600).

Almost surely, 2^87214668515 is an apocalyptic number.

87214668515 is a deficient number, since it is larger than the sum of its proper divisors (31258393885).

87214668515 is a wasteful number, since it uses less digits than its factorization.

87214668515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its digits is 3225600, while the sum is 53.

The spelling of 87214668515 in words is "eighty-seven billion, two hundred fourteen million, six hundred sixty-eight thousand, five hundred fifteen".