87215007215 has 32 divisors (see below), whose sum is σ = 119882125440. Its totient is φ = 59668291584.

The previous prime is 87215007181. The next prime is 87215007221. The reversal of 87215007215 is 51270051278.

It is a cyclic number.

It is not a de Polignac number, because 87215007215 - 2⁶ = 87215007151 is a prime.

It is a congruent number.

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, 46168991 + ... + 46170879.

It is an arithmetic number, because the mean of its divisors is an integer number (3746316420).

Almost surely, 2^87215007215 is an apocalyptic number.

87215007215 is a deficient number, since it is larger than the sum of its proper divisors (32667118225).

87215007215 is a wasteful number, since it uses less digits than its factorization.

87215007215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its (nonzero) digits is 39200, while the sum is 38.

The spelling of 87215007215 in words is "eighty-seven billion, two hundred fifteen million, seven thousand, two hundred fifteen".