10639242893 has 2 divisors, whose sum is σ = 10639242894. Its totient is φ = 10639242892.

The previous prime is 10639242853. The next prime is 10639242989. The reversal of 10639242893 is 39824293601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7558215844 + 3081027049 = 86938^2 + 55507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10639242893 is a prime.

It is a super-2 number, since 2×10639242893² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10639242853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319621446 + 5319621447.

It is an arithmetic number, because the mean of its divisors is an integer number (5319621447).

Almost surely, 2^10639242893 is an apocalyptic number.

It is an amenable number.

10639242893 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639242893 is an equidigital number, since it uses as much as digits as its factorization.

10639242893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 10639242893 in words is "ten billion, six hundred thirty-nine million, two hundred forty-two thousand, eight hundred ninety-three".