40442577687 has 6 divisors (see below), whose sum is σ = 58417056672. Its totient is φ = 26961718452.

The previous prime is 40442577683. The next prime is 40442577691. The reversal of 40442577687 is 78677524404.

40442577687 is a `hidden beast` number, since 4 + 0 + 4 + 4 + 2 + 577 + 68 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (40442577683) and next prime (40442577691).

It is not a de Polignac number, because 40442577687 - 2² = 40442577683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442577683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2246809863 + ... + 2246809880.

It is an arithmetic number, because the mean of its divisors is an integer number (9736176112).

Almost surely, 2^40442577687 is an apocalyptic number.

40442577687 is a deficient number, since it is larger than the sum of its proper divisors (17974478985).

40442577687 is a wasteful number, since it uses less digits than its factorization.

40442577687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493619749 (or 4493619746 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 54.

The spelling of 40442577687 in words is "forty billion, four hundred forty-two million, five hundred seventy-seven thousand, six hundred eighty-seven".