74543107739 has 16 divisors (see below), whose sum is σ = 79022049120. Its totient is φ = 70192631040.

The previous prime is 74543107729. The next prime is 74543107753. The reversal of 74543107739 is 93770134547.

It is a cyclic number.

It is not a de Polignac number, because 74543107739 - 2¹² = 74543103643 is a prime.

It is a super-2 number, since 2×74543107739² (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 (74543107729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4001204 + ... + 4019790.

It is an arithmetic number, because the mean of its divisors is an integer number (4938878070).

Almost surely, 2^74543107739 is an apocalyptic number.

74543107739 is a deficient number, since it is larger than the sum of its proper divisors (4478941381).

74543107739 is a wasteful number, since it uses less digits than its factorization.

74543107739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22030.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 74543107739 in words is "seventy-four billion, five hundred forty-three million, one hundred seven thousand, seven hundred thirty-nine".