40026668004 has 36 divisors (see below), whose sum is σ = 101950889040. Its totient is φ = 13240372080.

The previous prime is 40026667997. The next prime is 40026668029. The reversal of 40026668004 is 40086662004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40026668004.

It is an unprimeable number.

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, 4238994 + ... + 4248425.

It is an arithmetic number, because the mean of its divisors is an integer number (2831969140).

Almost surely, 2^40026668004 is an apocalyptic number.

It is an amenable number.

40026668004 is an abundant number, since it is smaller than the sum of its proper divisors (61924221036).

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

40026668004 is a wasteful number, since it uses less digits than its factorization.

40026668004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487560 (or 8487555 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 40026668004 in words is "forty billion, twenty-six million, six hundred sixty-eight thousand, four".