40044539877201 has 40 divisors (see below), whose sum is σ = 59978481203784. Its totient is φ = 26625556500480.

The previous prime is 40044539877197. The next prime is 40044539877241. The reversal of 40044539877201 is 10277893544004.

40044539877201 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 4 + 539 + 87 + 7 + 20 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1422292374801 + 38622247502400 = 1192599^2 + 6214680^2 .

It is not a de Polignac number, because 40044539877201 - 2² = 40044539877197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40044539877241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46289061 + ... + 47146221.

Almost surely, 2^{40044539877201} is an apocalyptic number.

It is an amenable number.

40044539877201 is a deficient number, since it is larger than the sum of its proper divisors (19933941326583).

40044539877201 is an equidigital number, since it uses as much as digits as its factorization.

40044539877201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858703 (or 858694 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 40044539877201 in words is "forty trillion, forty-four billion, five hundred thirty-nine million, eight hundred seventy-seven thousand, two hundred one".