87102261775 has 12 divisors (see below), whose sum is σ = 108173759472. Its totient is φ = 69574096640.

The previous prime is 87102261761. The next prime is 87102261793. The reversal of 87102261775 is 57716220178.

It is not a de Polignac number, because 87102261775 - 2²⁵ = 87068707343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2676322 + ... + 2708671.

It is an arithmetic number, because the mean of its divisors is an integer number (9014479956).

Almost surely, 2^87102261775 is an apocalyptic number.

87102261775 is a deficient number, since it is larger than the sum of its proper divisors (21071497697).

87102261775 is a wasteful number, since it uses less digits than its factorization.

87102261775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385650 (or 5385645 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 87102261775 in words is "eighty-seven billion, one hundred two million, two hundred sixty-one thousand, seven hundred seventy-five".