10643174374949 has 2 divisors, whose sum is σ = 10643174374950. Its totient is φ = 10643174374948.

The previous prime is 10643174374907. The next prime is 10643174374961. The reversal of 10643174374949 is 94947347134601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10635327604225 + 7846770724 = 3261185^2 + 88582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10643174374949 is a prime.

It is a super-2 number, since 2×10643174374949² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10643174374891 and 10643174374900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10643174374969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321587187474 + 5321587187475.

It is an arithmetic number, because the mean of its divisors is an integer number (5321587187475).

Almost surely, 2^{10643174374949} is an apocalyptic number.

It is an amenable number.

10643174374949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10643174374949 is an equidigital number, since it uses as much as digits as its factorization.

10643174374949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 10643174374949 in words is "ten trillion, six hundred forty-three billion, one hundred seventy-four million, three hundred seventy-four thousand, nine hundred forty-nine".