40442577688 has 16 divisors (see below), whose sum is σ = 75841147080. Its totient is φ = 20218271808.

The previous prime is 40442577683. The next prime is 40442577691. The reversal of 40442577688 is 88677524404.

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 3 ways as a sum of consecutive naturals, for example, 319645 + ... + 427852.

Almost surely, 2^40442577688 is an apocalyptic number.

It is an amenable number.

40442577688 is a deficient number, since it is larger than the sum of its proper divisors (35398569392).

40442577688 is a wasteful number, since it uses less digits than its factorization.

40442577688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754266 (or 754262 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 40442577688 in words is "forty billion, four hundred forty-two million, five hundred seventy-seven thousand, six hundred eighty-eight".