14640942493 has 2 divisors, whose sum is σ = 14640942494. Its totient is φ = 14640942492.

The previous prime is 14640942469. The next prime is 14640942509. The reversal of 14640942493 is 39424904641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8490148164 + 6150794329 = 92142^2 + 78427^2 .

It is an emirp because it is prime and its reverse (39424904641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14640942493 - 2¹⁷ = 14640811421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14640942403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7320471246 + 7320471247.

It is an arithmetic number, because the mean of its divisors is an integer number (7320471247).

Almost surely, 2^14640942493 is an apocalyptic number.

It is an amenable number.

14640942493 is a deficient number, since it is larger than the sum of its proper divisors (1).

14640942493 is an equidigital number, since it uses as much as digits as its factorization.

14640942493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 14640942493 in words is "fourteen billion, six hundred forty million, nine hundred forty-two thousand, four hundred ninety-three".