74131613147 has 2 divisors, whose sum is σ = 74131613148. Its totient is φ = 74131613146.

The previous prime is 74131613137. The next prime is 74131613161.

It is a happy number.

74131613147 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 74131613147 - 2¹⁸ = 74131351003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74131613147.

It is not a weakly prime, because it can be changed into another prime (74131613137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37065806573 + 37065806574.

It is an arithmetic number, because the mean of its divisors is an integer number (37065806574).

Almost surely, 2^74131613147 is an apocalyptic number.

74131613147 is a deficient number, since it is larger than the sum of its proper divisors (1).

74131613147 is an equidigital number, since it uses as much as digits as its factorization.

74131613147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The spelling of 74131613147 in words is "seventy-four billion, one hundred thirty-one million, six hundred thirteen thousand, one hundred forty-seven".