87415850764717 has 4 divisors (see below), whose sum is σ = 87459624352476. Its totient is φ = 87372077176960.

The previous prime is 87415850764699. The next prime is 87415850764727. The reversal of 87415850764717 is 71746705851478.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2986326153801 + 84429524610916 = 1728099^2 + 9188554^2 .

It is a cyclic number.

It is not a de Polignac number, because 87415850764717 - 2¹⁵ = 87415850731949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87415850764727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21886790884 + ... + 21886794877.

It is an arithmetic number, because the mean of its divisors is an integer number (21864906088119).

Almost surely, 2^{87415850764717} is an apocalyptic number.

It is an amenable number.

87415850764717 is a deficient number, since it is larger than the sum of its proper divisors (43773587759).

87415850764717 is a wasteful number, since it uses less digits than its factorization.

87415850764717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43773587758.

The product of its (nonzero) digits is 368793600, while the sum is 70.

The spelling of 87415850764717 in words is "eighty-seven trillion, four hundred fifteen billion, eight hundred fifty million, seven hundred sixty-four thousand, seven hundred seventeen".