40405441654 has 16 divisors (see below), whose sum is σ = 60891494400. Its totient is φ = 20108410920.

The previous prime is 40405441651. The next prime is 40405441663. The reversal of 40405441654 is 45614450404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40405441651) by changing a digit.

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, 583147 + ... + 648745.

It is an arithmetic number, because the mean of its divisors is an integer number (3805718400).

Almost surely, 2^40405441654 is an apocalyptic number.

40405441654 is a deficient number, since it is larger than the sum of its proper divisors (20486052746).

40405441654 is a wasteful number, since it uses less digits than its factorization.

40405441654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67035.

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 40405441654 in words is "forty billion, four hundred five million, four hundred forty-one thousand, six hundred fifty-four".