74039128047 has 12 divisors (see below), whose sum is σ = 112574113080. Its totient is φ = 46761554448.

The previous prime is 74039128043. The next prime is 74039128069. The reversal of 74039128047 is 74082193047.

It is not a de Polignac number, because 74039128047 - 2² = 74039128043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74039127993 and 74039128011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74039128043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216488508 + ... + 216488849.

It is an arithmetic number, because the mean of its divisors is an integer number (9381176090).

Almost surely, 2^74039128047 is an apocalyptic number.

74039128047 is a deficient number, since it is larger than the sum of its proper divisors (38534985033).

74039128047 is a wasteful number, since it uses less digits than its factorization.

74039128047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432977382 (or 432977379 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 74039128047 in words is "seventy-four billion, thirty-nine million, one hundred twenty-eight thousand, forty-seven".