2045341621877 has 2 divisors, whose sum is σ = 2045341621878. Its totient is φ = 2045341621876.

The previous prime is 2045341621801. The next prime is 2045341621913. The reversal of 2045341621877 is 7781261435402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1460982281521 + 584359340356 = 1208711^2 + 764434^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045341621877 - 2¹⁶ = 2045341556341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045341626877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022670810938 + 1022670810939.

It is an arithmetic number, because the mean of its divisors is an integer number (1022670810939).

Almost surely, 2^{2045341621877} is an apocalyptic number.

It is an amenable number.

2045341621877 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045341621877 is an equidigital number, since it uses as much as digits as its factorization.

2045341621877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 2045341621877 in words is "two trillion, forty-five billion, three hundred forty-one million, six hundred twenty-one thousand, eight hundred seventy-seven".