74256465247 has 4 divisors (see below), whose sum is σ = 78164700280. Its totient is φ = 70348230216.

The previous prime is 74256465229. The next prime is 74256465253.

74256465247 is nontrivially palindromic in base 10.

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-74256465247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74256465194 and 74256465203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74256475247) 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, 1954117488 + ... + 1954117525.

It is an arithmetic number, because the mean of its divisors is an integer number (19541175070).

Almost surely, 2^74256465247 is an apocalyptic number.

74256465247 is a deficient number, since it is larger than the sum of its proper divisors (3908235033).

74256465247 is a wasteful number, since it uses less digits than its factorization.

74256465247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3908235032.

The product of its digits is 11289600, while the sum is 52.

The spelling of 74256465247 in words is "seventy-four billion, two hundred fifty-six million, four hundred sixty-five thousand, two hundred forty-seven".