40444400137851 has 12 divisors (see below), whose sum is σ = 58424528115928. Its totient is φ = 26960700027744.

The previous prime is 40444400137849. The next prime is 40444400138011. The reversal of 40444400137851 is 15873100444404.

40444400137851 is a `hidden beast` number, since 40 + 44 + 440 + 0 + 13 + 78 + 51 = 666.

40444400137851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40444400137851 - 2¹ = 40444400137849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40444400137797 and 40444400137806.

It is not an unprimeable number, because it can be changed into a prime (40444400139851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186001765 + ... + 186219078.

Almost surely, 2^{40444400137851} is an apocalyptic number.

40444400137851 is a deficient number, since it is larger than the sum of its proper divisors (17980127978077).

40444400137851 is a wasteful number, since it uses less digits than its factorization.

40444400137851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372232922 (or 372232919 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 40444400137851 in words is "forty trillion, four hundred forty-four billion, four hundred million, one hundred thirty-seven thousand, eight hundred fifty-one".