74384448347 has 8 divisors (see below), whose sum is σ = 81817306032. Its totient is φ = 67622224560.

The previous prime is 74384448331. The next prime is 74384448353.

74384448347 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74384448347 - 2⁴ = 74384448331 is a prime.

It is a super-2 number, since 2×74384448347² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74384448292 and 74384448301.

It is not an unprimeable number, because it can be changed into a prime (74384448947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27941738 + ... + 27944399.

It is an arithmetic number, because the mean of its divisors is an integer number (10227163254).

Almost surely, 2^74384448347 is an apocalyptic number.

74384448347 is a deficient number, since it is larger than the sum of its proper divisors (7432857685).

74384448347 is an equidigital number, since it uses as much as digits as its factorization.

74384448347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55886170 (or 55886148 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 56.

The spelling of 74384448347 in words is "seventy-four billion, three hundred eighty-four million, four hundred forty-eight thousand, three hundred forty-seven".