10245640621273 has 2 divisors, whose sum is σ = 10245640621274. Its totient is φ = 10245640621272.

The previous prime is 10245640621133. The next prime is 10245640621421. The reversal of 10245640621273 is 37212604654201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8418893750089 + 1826746871184 = 2901533^2 + 1351572^2 .

It is a cyclic number.

It is not a de Polignac number, because 10245640621273 - 2¹⁷ = 10245640490201 is a prime.

It is not a weakly prime, because it can be changed into another prime (10245640624273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5122820310636 + 5122820310637.

It is an arithmetic number, because the mean of its divisors is an integer number (5122820310637).

Almost surely, 2^{10245640621273} is an apocalyptic number.

It is an amenable number.

10245640621273 is a deficient number, since it is larger than the sum of its proper divisors (1).

10245640621273 is an equidigital number, since it uses as much as digits as its factorization.

10245640621273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 10245640621273 in words is "ten trillion, two hundred forty-five billion, six hundred forty million, six hundred twenty-one thousand, two hundred seventy-three".