74543075405 has 16 divisors (see below), whose sum is σ = 91806903360. Its totient is φ = 58084321152.

The previous prime is 74543075393. The next prime is 74543075419. The reversal of 74543075405 is 50457034547.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74543075405 - 2¹⁶ = 74543009869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1220279 + ... + 1279908.

It is an arithmetic number, because the mean of its divisors is an integer number (5737931460).

Almost surely, 2^74543075405 is an apocalyptic number.

It is an amenable number.

74543075405 is a deficient number, since it is larger than the sum of its proper divisors (17263827955).

74543075405 is a wasteful number, since it uses less digits than its factorization.

74543075405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500348.

The product of its (nonzero) digits is 1176000, while the sum is 44.

The spelling of 74543075405 in words is "seventy-four billion, five hundred forty-three million, seventy-five thousand, four hundred five".