87816106485 has 12 divisors (see below), whose sum is σ = 152214584652. Its totient is φ = 46835256768.

The previous prime is 87816106453. The next prime is 87816106489. The reversal of 87816106485 is 58460161878.

It is a happy number.

87816106485 is a `hidden beast` number, since 87 + 81 + 6 + 1 + 0 + 6 + 485 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38322760644 + 49493345841 = 195762^2 + 222471^2 .

It is not a de Polignac number, because 87816106485 - 2⁵ = 87816106453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87816106489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 975734472 + ... + 975734561.

It is an arithmetic number, because the mean of its divisors is an integer number (12684548721).

Almost surely, 2^87816106485 is an apocalyptic number.

It is an amenable number.

87816106485 is a deficient number, since it is larger than the sum of its proper divisors (64398478167).

87816106485 is a wasteful number, since it uses less digits than its factorization.

87816106485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951469044 (or 1951469041 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 87816106485 in words is "eighty-seven billion, eight hundred sixteen million, one hundred six thousand, four hundred eighty-five".