75849094171 has 4 divisors (see below), whose sum is σ = 76917391344. Its totient is φ = 74780797000.

The previous prime is 75849094147. The next prime is 75849094177. The reversal of 75849094171 is 17149094857.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17149094857 = 103291 ⋅166027.

It is a cyclic number.

It is not a de Polignac number, because 75849094171 - 2⁷ = 75849094043 is a prime.

It is a super-2 number, since 2×75849094171² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75849094177) 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, 534148480 + ... + 534148621.

It is an arithmetic number, because the mean of its divisors is an integer number (19229347836).

Almost surely, 2^75849094171 is an apocalyptic number.

75849094171 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

75849094171 is a deficient number, since it is larger than the sum of its proper divisors (1068297173).

75849094171 is a wasteful number, since it uses less digits than its factorization.

75849094171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068297172.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 75849094171 in words is "seventy-five billion, eight hundred forty-nine million, ninety-four thousand, one hundred seventy-one".