74889095892647 has 2 divisors, whose sum is σ = 74889095892648. Its totient is φ = 74889095892646.

The previous prime is 74889095892643. The next prime is 74889095892679. The reversal of 74889095892647 is 74629859098847.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74889095892647 - 2² = 74889095892643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74889095892641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37444547946323 + 37444547946324.

It is an arithmetic number, because the mean of its divisors is an integer number (37444547946324).

Almost surely, 2^{74889095892647} is an apocalyptic number.

74889095892647 is a deficient number, since it is larger than the sum of its proper divisors (1).

74889095892647 is an equidigital number, since it uses as much as digits as its factorization.

74889095892647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17557585920, while the sum is 86.

The spelling of 74889095892647 in words is "seventy-four trillion, eight hundred eighty-nine billion, ninety-five million, eight hundred ninety-two thousand, six hundred forty-seven".