87647858405 has 16 divisors (see below), whose sum is σ = 109237766400. Its totient is φ = 67430664000.

The previous prime is 87647858387. The next prime is 87647858423. The reversal of 87647858405 is 50485874678.

It is an interprime number because it is at equal distance from previous prime (87647858387) and next prime (87647858423).

It is not a de Polignac number, because 87647858405 - 2²⁴ = 87631081189 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1167725 + ... + 1240514.

It is an arithmetic number, because the mean of its divisors is an integer number (6827360400).

Almost surely, 2^87647858405 is an apocalyptic number.

It is an amenable number.

87647858405 is a deficient number, since it is larger than the sum of its proper divisors (21589907995).

87647858405 is a wasteful number, since it uses less digits than its factorization.

87647858405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408524.

The product of its (nonzero) digits is 60211200, while the sum is 62.

The spelling of 87647858405 in words is "eighty-seven billion, six hundred forty-seven million, eight hundred fifty-eight thousand, four hundred five".