2755406811638 has 32 divisors (see below), whose sum is σ = 4594782581760. Its totient is φ = 1230660254880.

The previous prime is 2755406811637. The next prime is 2755406811643. The reversal of 2755406811638 is 8361186045572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755406811637) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40739333 + ... + 40806911.

It is an arithmetic number, because the mean of its divisors is an integer number (143586955680).

Almost surely, 2^{2755406811638} is an apocalyptic number.

2755406811638 is a deficient number, since it is larger than the sum of its proper divisors (1839375770122).

2755406811638 is a wasteful number, since it uses less digits than its factorization.

2755406811638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118212.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 2755406811638 in words is "two trillion, seven hundred fifty-five billion, four hundred six million, eight hundred eleven thousand, six hundred thirty-eight".