40871047585 has 8 divisors (see below), whose sum is σ = 49060910376. Its totient is φ = 32686402560.

The previous prime is 40871047577. The next prime is 40871047669. The reversal of 40871047585 is 58574017804.

It can be written as a sum of positive squares in 4 ways, for example, as 16737114384 + 24133933201 = 129372^2 + 155351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40871047585 - 2³ = 40871047577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287186 + ... + 1318555.

It is an arithmetic number, because the mean of its divisors is an integer number (6132613797).

Almost surely, 2^40871047585 is an apocalyptic number.

It is an amenable number.

40871047585 is a deficient number, since it is larger than the sum of its proper divisors (8189862791).

40871047585 is a wasteful number, since it uses less digits than its factorization.

40871047585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608883.

The product of its (nonzero) digits is 1254400, while the sum is 49.

The spelling of 40871047585 in words is "forty billion, eight hundred seventy-one million, forty-seven thousand, five hundred eighty-five".