2889021845257 has 2 divisors, whose sum is σ = 2889021845258. Its totient is φ = 2889021845256.

The previous prime is 2889021845233. The next prime is 2889021845267. The reversal of 2889021845257 is 7525481209882.

2889021845257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1574282127616 + 1314739717641 = 1254704^2 + 1146621^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889021845257 - 2³⁵ = 2854662106889 is a prime.

It is a super-2 number, since 2×2889021845257² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2889021845195 and 2889021845204.

It is not a weakly prime, because it can be changed into another prime (2889021845267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444510922628 + 1444510922629.

It is an arithmetic number, because the mean of its divisors is an integer number (1444510922629).

Almost surely, 2^{2889021845257} is an apocalyptic number.

It is an amenable number.

2889021845257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889021845257 is an equidigital number, since it uses as much as digits as its factorization.

2889021845257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25804800, while the sum is 61.

The spelling of 2889021845257 in words is "two trillion, eight hundred eighty-nine billion, twenty-one million, eight hundred forty-five thousand, two hundred fifty-seven".