2147640423293 has 2 divisors, whose sum is σ = 2147640423294. Its totient is φ = 2147640423292.

The previous prime is 2147640423287. The next prime is 2147640423349. The reversal of 2147640423293 is 3923240467412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2147640423289 + 4 = 1465483^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147640423293 - 2⁸ = 2147640423037 is a prime.

It is a super-2 number, since 2×2147640423293² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147640423223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073820211646 + 1073820211647.

It is an arithmetic number, because the mean of its divisors is an integer number (1073820211647).

Almost surely, 2^{2147640423293} is an apocalyptic number.

It is an amenable number.

2147640423293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147640423293 is an equidigital number, since it uses as much as digits as its factorization.

2147640423293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 47.

The spelling of 2147640423293 in words is "two trillion, one hundred forty-seven billion, six hundred forty million, four hundred twenty-three thousand, two hundred ninety-three".