87109408385 has 16 divisors (see below), whose sum is σ = 106977822336. Its totient is φ = 68056977408.

The previous prime is 87109408369. The next prime is 87109408453. The reversal of 87109408385 is 58380490178.

It is a cyclic number.

It is not a de Polignac number, because 87109408385 - 2⁴ = 87109408369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680932 + ... + 1731978.

It is an arithmetic number, because the mean of its divisors is an integer number (6686113896).

Almost surely, 2^87109408385 is an apocalyptic number.

It is an amenable number.

87109408385 is a deficient number, since it is larger than the sum of its proper divisors (19868413951).

87109408385 is a wasteful number, since it uses less digits than its factorization.

87109408385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59032.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 87109408385 in words is "eighty-seven billion, one hundred nine million, four hundred eight thousand, three hundred eighty-five".