87436417478684 has 6 divisors (see below), whose sum is σ = 153013730587704. Its totient is φ = 43718208739340.

The previous prime is 87436417478681. The next prime is 87436417478687. The reversal of 87436417478684 is 48687471463478.

It is an interprime number because it is at equal distance from previous prime (87436417478681) and next prime (87436417478687).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87436417478681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10929552184832 + ... + 10929552184839.

It is an arithmetic number, because the mean of its divisors is an integer number (25502288431284).

Almost surely, 2^{87436417478684} is an apocalyptic number.

It is an amenable number.

87436417478684 is a deficient number, since it is larger than the sum of its proper divisors (65577313109020).

87436417478684 is a wasteful number, since it uses less digits than its factorization.

87436417478684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21859104369675 (or 21859104369673 counting only the distinct ones).

The product of its digits is 4855431168, while the sum is 77.

The spelling of 87436417478684 in words is "eighty-seven trillion, four hundred thirty-six billion, four hundred seventeen million, four hundred seventy-eight thousand, six hundred eighty-four".