74839093847 has 4 divisors (see below), whose sum is σ = 85530392976. Its totient is φ = 64147794720.

The previous prime is 74839093841. The next prime is 74839093853.

74839093847 is nontrivially palindromic in base 10.

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

It is an interprime number because it is at equal distance from previous prime (74839093841) and next prime (74839093853).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74839093847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74839093847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74839093841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345649554 + ... + 5345649567.

It is an arithmetic number, because the mean of its divisors is an integer number (21382598244).

Almost surely, 2^74839093847 is an apocalyptic number.

74839093847 is a deficient number, since it is larger than the sum of its proper divisors (10691299129).

74839093847 is a wasteful number, since it uses less digits than its factorization.

74839093847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691299128.

The product of its (nonzero) digits is 36578304, while the sum is 62.

The spelling of 74839093847 in words is "seventy-four billion, eight hundred thirty-nine million, ninety-three thousand, eight hundred forty-seven".