40442577686 has 16 divisors (see below), whose sum is σ = 73408376736. Its totient is φ = 16312972416.

The previous prime is 40442577683. The next prime is 40442577691. The reversal of 40442577686 is 68677524404.

It is a super-2 number, since 2×40442577686² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 84963161 + ... + 84963636.

It is an arithmetic number, because the mean of its divisors is an integer number (4588023546).

Almost surely, 2^40442577686 is an apocalyptic number.

40442577686 is a deficient number, since it is larger than the sum of its proper divisors (32965799050).

40442577686 is a wasteful number, since it uses less digits than its factorization.

40442577686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169926823.

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 40442577686 in words is "forty billion, four hundred forty-two million, five hundred seventy-seven thousand, six hundred eighty-six".