74857233450851 has 2 divisors, whose sum is σ = 74857233450852. Its totient is φ = 74857233450850.

The previous prime is 74857233450847. The next prime is 74857233450887. The reversal of 74857233450851 is 15805433275847.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15805433275847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74857233450851 - 2² = 74857233450847 is a prime.

It is not a weakly prime, because it can be changed into another prime (74857233450751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37428616725425 + 37428616725426.

It is an arithmetic number, because the mean of its divisors is an integer number (37428616725426).

Almost surely, 2^{74857233450851} is an apocalyptic number.

74857233450851 is a deficient number, since it is larger than the sum of its proper divisors (1).

74857233450851 is an equidigital number, since it uses as much as digits as its factorization.

74857233450851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896000, while the sum is 62.

The spelling of 74857233450851 in words is "seventy-four trillion, eight hundred fifty-seven billion, two hundred thirty-three million, four hundred fifty thousand, eight hundred fifty-one".