40520583887 has 16 divisors (see below), whose sum is σ = 47368283712. Its totient is φ = 33944901120.

The previous prime is 40520583847. The next prime is 40520583889. The reversal of 40520583887 is 78838502504.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40520583887 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 (40520583889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235178 + ... + 369255.

It is an arithmetic number, because the mean of its divisors is an integer number (2960517732).

Almost surely, 2^40520583887 is an apocalyptic number.

40520583887 is a deficient number, since it is larger than the sum of its proper divisors (6847699825).

40520583887 is a wasteful number, since it uses less digits than its factorization.

40520583887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604658.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 40520583887 in words is "forty billion, five hundred twenty million, five hundred eighty-three thousand, eight hundred eighty-seven".