74543161293 has 6 divisors (see below), whose sum is σ = 107673455214. Its totient is φ = 49695440856.

The previous prime is 74543161267. The next prime is 74543161309. The reversal of 74543161293 is 39216134547.

74543161293 is a `hidden beast` number, since 7 + 4 + 543 + 1 + 6 + 12 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57016843524 + 17526317769 = 238782^2 + 132387^2 .

It is not a de Polignac number, because 74543161293 - 2⁵ = 74543161261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74543161223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4141286730 + ... + 4141286747.

It is an arithmetic number, because the mean of its divisors is an integer number (17945575869).

Almost surely, 2^74543161293 is an apocalyptic number.

It is an amenable number.

74543161293 is a deficient number, since it is larger than the sum of its proper divisors (33130293921).

74543161293 is a wasteful number, since it uses less digits than its factorization.

74543161293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8282573483 (or 8282573480 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 74543161293 in words is "seventy-four billion, five hundred forty-three million, one hundred sixty-one thousand, two hundred ninety-three".