40667736738 has 32 divisors (see below), whose sum is σ = 83361156480. Its totient is φ = 13218631040.

The previous prime is 40667736737. The next prime is 40667736763. The reversal of 40667736738 is 83763776604.

It is a super-2 number, since 2×40667736738² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40667736737) 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, 461056 + ... + 542132.

It is an arithmetic number, because the mean of its divisors is an integer number (2605036140).

Almost surely, 2^40667736738 is an apocalyptic number.

40667736738 is an abundant number, since it is smaller than the sum of its proper divisors (42693419742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40667736738 is a wasteful number, since it uses less digits than its factorization.

40667736738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83162.

The product of its (nonzero) digits is 21337344, while the sum is 57.

The spelling of 40667736738 in words is "forty billion, six hundred sixty-seven million, seven hundred thirty-six thousand, seven hundred thirty-eight".