74942969443 has 4 divisors (see below), whose sum is σ = 75074218648. Its totient is φ = 74811720240.

The previous prime is 74942969429. The next prime is 74942969459. The reversal of 74942969443 is 34496924947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74942969443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74942964443) 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, 65623746 + ... + 65624887.

It is an arithmetic number, because the mean of its divisors is an integer number (18768554662).

Almost surely, 2^74942969443 is an apocalyptic number.

74942969443 is a deficient number, since it is larger than the sum of its proper divisors (131249205).

74942969443 is a wasteful number, since it uses less digits than its factorization.

74942969443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131249204.

The product of its digits is 47029248, while the sum is 61.

The spelling of 74942969443 in words is "seventy-four billion, nine hundred forty-two million, nine hundred sixty-nine thousand, four hundred forty-three".