40478451926 has 16 divisors (see below), whose sum is σ = 67646776320. Its totient is φ = 18007821480.

The previous prime is 40478451889. The next prime is 40478452009. The reversal of 40478451926 is 62915487404.

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 7 ways as a sum of consecutive naturals, for example, 19572686 + ... + 19574753.

It is an arithmetic number, because the mean of its divisors is an integer number (4227923520).

Almost surely, 2^40478451926 is an apocalyptic number.

40478451926 is a deficient number, since it is larger than the sum of its proper divisors (27168324394).

40478451926 is a wasteful number, since it uses less digits than its factorization.

40478451926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39147499.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 40478451926 in words is "forty billion, four hundred seventy-eight million, four hundred fifty-one thousand, nine hundred twenty-six".