1210745684959 has 2 divisors, whose sum is σ = 1210745684960. Its totient is φ = 1210745684958.

The previous prime is 1210745684921. The next prime is 1210745684977. The reversal of 1210745684959 is 9594865470121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210745684959 - 2¹⁷ = 1210745553887 is a prime.

It is a super-2 number, since 2×1210745684959² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210745684897 and 1210745684906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210745684909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605372842479 + 605372842480.

It is an arithmetic number, because the mean of its divisors is an integer number (605372842480).

Almost surely, 2^{1210745684959} is an apocalyptic number.

1210745684959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210745684959 is an equidigital number, since it uses as much as digits as its factorization.

1210745684959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 1210745684959 in words is "one trillion, two hundred ten billion, seven hundred forty-five million, six hundred eighty-four thousand, nine hundred fifty-nine".