74857233450847 has 2 divisors, whose sum is σ = 74857233450848. Its totient is φ = 74857233450846.

The previous prime is 74857233450817. The next prime is 74857233450851. The reversal of 74857233450847 is 74805433275847.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74857233450847 - 2²³ = 74857225062239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74857233450817) 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, 37428616725423 + 37428616725424.

It is an arithmetic number, because the mean of its divisors is an integer number (37428616725424).

Almost surely, 2^{74857233450847} is an apocalyptic number.

74857233450847 is a deficient number, since it is larger than the sum of its proper divisors (1).

74857233450847 is an equidigital number, since it uses as much as digits as its factorization.

74857233450847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 632217600, while the sum is 67.

The spelling of 74857233450847 in words is "seventy-four trillion, eight hundred fifty-seven billion, two hundred thirty-three million, four hundred fifty thousand, eight hundred forty-seven".