40578676938 has 24 divisors (see below), whose sum is σ = 90952208100. Its totient is φ = 13059803904.

The previous prime is 40578676913. The next prime is 40578676939. The reversal of 40578676938 is 83967687504.

40578676938 is a `hidden beast` number, since 405 + 78 + 6 + 76 + 93 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40484256849 + 94420089 = 201207^2 + 9717^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40578676939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38867943 + ... + 38868986.

Almost surely, 2^40578676938 is an apocalyptic number.

40578676938 is an abundant number, since it is smaller than the sum of its proper divisors (50373531162).

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

40578676938 is a wasteful number, since it uses less digits than its factorization.

40578676938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77736966 (or 77736963 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 40578676938 in words is "forty billion, five hundred seventy-eight million, six hundred seventy-six thousand, nine hundred thirty-eight".