40889067678 has 32 divisors (see below), whose sum is σ = 90871334400. Its totient is φ = 13628678328.

The previous prime is 40889067647. The next prime is 40889067689. The reversal of 40889067678 is 87676098804.

40889067678 is a `hidden beast` number, since 408 + 8 + 90 + 6 + 76 + 78 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197243 + ... + 1230921.

It is an arithmetic number, because the mean of its divisors is an integer number (2839729200).

Almost surely, 2^40889067678 is an apocalyptic number.

40889067678 is an abundant number, since it is smaller than the sum of its proper divisors (49982266722).

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

40889067678 is a wasteful number, since it uses less digits than its factorization.

40889067678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56173 (or 56167 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The spelling of 40889067678 in words is "forty billion, eight hundred eighty-nine million, sixty-seven thousand, six hundred seventy-eight".