2245778902469 has 2 divisors, whose sum is σ = 2245778902470. Its totient is φ = 2245778902468.

The previous prime is 2245778902363. The next prime is 2245778902481. The reversal of 2245778902469 is 9642098775422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1726425184225 + 519353718244 = 1313935^2 + 720662^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245778902469 - 2³⁶ = 2177059425733 is a prime.

It is a super-2 number, since 2×2245778902469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2245778902489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122889451234 + 1122889451235.

It is an arithmetic number, because the mean of its divisors is an integer number (1122889451235).

Almost surely, 2^{2245778902469} is an apocalyptic number.

It is an amenable number.

2245778902469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245778902469 is an equidigital number, since it uses as much as digits as its factorization.

2245778902469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121927680, while the sum is 65.

The spelling of 2245778902469 in words is "two trillion, two hundred forty-five billion, seven hundred seventy-eight million, nine hundred two thousand, four hundred sixty-nine".