1894956769 has 2 divisors, whose sum is σ = 1894956770. Its totient is φ = 1894956768.

The previous prime is 1894956751. The next prime is 1894956787. The reversal of 1894956769 is 9676594981.

It is a balanced prime because it is at equal distance from previous prime (1894956751) and next prime (1894956787).

It can be written as a sum of positive squares in only one way, i.e., 1888771600 + 6185169 = 43460^2 + 2487^2 .

It is a cyclic number.

It is not a de Polignac number, because 1894956769 - 2¹⁵ = 1894924001 is a prime.

It is a super-2 number, since 2×1894956769² = 7181722312757838722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1894956769.

It is not a weakly prime, because it can be changed into another prime (1894956709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 947478384 + 947478385.

It is an arithmetic number, because the mean of its divisors is an integer number (947478385).

Almost surely, 2^1894956769 is an apocalyptic number.

It is an amenable number.

1894956769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1894956769 is an equidigital number, since it uses as much as digits as its factorization.

1894956769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 64.

The square root of 1894956769 is about 43531.1011691641. The cubic root of 1894956769 is about 1237.4655066942.

The spelling of 1894956769 in words is "one billion, eight hundred ninety-four million, nine hundred fifty-six thousand, seven hundred sixty-nine".