74857233450171 has 4 divisors (see below), whose sum is σ = 99809644600232. Its totient is φ = 49904822300112.

The previous prime is 74857233450133. The next prime is 74857233450179. The reversal of 74857233450171 is 17105433275847.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74857233450171 - 2⁴⁵ = 39672861361339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74857233450179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12476205575026 + ... + 12476205575031.

It is an arithmetic number, because the mean of its divisors is an integer number (24952411150058).

Almost surely, 2^{74857233450171} is an apocalyptic number.

74857233450171 is a deficient number, since it is larger than the sum of its proper divisors (24952411150061).

74857233450171 is a wasteful number, since it uses less digits than its factorization.

74857233450171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24952411150060.

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 74857233450171 in words is "seventy-four trillion, eight hundred fifty-seven billion, two hundred thirty-three million, four hundred fifty thousand, one hundred seventy-one".