4127887901405 has 16 divisors (see below), whose sum is σ = 5074810728624. Its totient is φ = 3222101975040.

The previous prime is 4127887901399. The next prime is 4127887901413. The reversal of 4127887901405 is 5041097887214.

It can be written as a sum of positive squares in 8 ways, for example, as 1133264573401 + 2994623328004 = 1064549^2 + 1730498^2 .

It is not a de Polignac number, because 4127887901405 - 2²⁰ = 4127886852829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42982244 + ... + 43078173.

It is an arithmetic number, because the mean of its divisors is an integer number (317175670539).

Almost surely, 2^{4127887901405} is an apocalyptic number.

It is an amenable number.

4127887901405 is a deficient number, since it is larger than the sum of its proper divisors (946922827219).

4127887901405 is a wasteful number, since it uses less digits than its factorization.

4127887901405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86060656.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 4127887901405 in words is "four trillion, one hundred twenty-seven billion, eight hundred eighty-seven million, nine hundred one thousand, four hundred five".