74066950262639 has 2 divisors, whose sum is σ = 74066950262640. Its totient is φ = 74066950262638.

The previous prime is 74066950262537. The next prime is 74066950262663. The reversal of 74066950262639 is 93626205966047.

It is a strong prime.

It is an emirp because it is prime and its reverse (93626205966047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74066950262639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74066950262699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37033475131319 + 37033475131320.

It is an arithmetic number, because the mean of its divisors is an integer number (37033475131320).

Almost surely, 2^{74066950262639} is an apocalyptic number.

74066950262639 is a deficient number, since it is larger than the sum of its proper divisors (1).

74066950262639 is an equidigital number, since it uses as much as digits as its factorization.

74066950262639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176359680, while the sum is 65.

The spelling of 74066950262639 in words is "seventy-four trillion, sixty-six billion, nine hundred fifty million, two hundred sixty-two thousand, six hundred thirty-nine".