87285715715 has 16 divisors (see below), whose sum is σ = 114272267616. Its totient is φ = 63476448000.

The previous prime is 87285715679. The next prime is 87285715717. The reversal of 87285715715 is 51751758278.

It is a happy number.

It is not a de Polignac number, because 87285715715 - 2²⁶ = 87218606851 is a prime.

It is a super-2 number, since 2×87285715715² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87285715717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015415 + ... + 1098015.

It is an arithmetic number, because the mean of its divisors is an integer number (7142016726).

Almost surely, 2^87285715715 is an apocalyptic number.

87285715715 is a deficient number, since it is larger than the sum of its proper divisors (26986551901).

87285715715 is a wasteful number, since it uses less digits than its factorization.

87285715715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101830.

The product of its digits is 5488000, while the sum is 56.

The spelling of 87285715715 in words is "eighty-seven billion, two hundred eighty-five million, seven hundred fifteen thousand, seven hundred fifteen".