3778817080853 has 2 divisors, whose sum is σ = 3778817080854. Its totient is φ = 3778817080852.

The previous prime is 3778817080807. The next prime is 3778817080867. The reversal of 3778817080853 is 3580807188773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3642761594404 + 136055486449 = 1908602^2 + 368857^2 .

It is a cyclic number.

It is not a de Polignac number, because 3778817080853 - 2⁶ = 3778817080789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3778817080853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3778817380853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1889408540426 + 1889408540427.

It is an arithmetic number, because the mean of its divisors is an integer number (1889408540427).

Almost surely, 2^{3778817080853} is an apocalyptic number.

It is an amenable number.

3778817080853 is a deficient number, since it is larger than the sum of its proper divisors (1).

3778817080853 is an equidigital number, since it uses as much as digits as its factorization.

3778817080853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63221760, while the sum is 65.

The spelling of 3778817080853 in words is "three trillion, seven hundred seventy-eight billion, eight hundred seventeen million, eighty thousand, eight hundred fifty-three".