74652425647 has 4 divisors (see below), whose sum is σ = 75350111976. Its totient is φ = 73954739320.

The previous prime is 74652425633. The next prime is 74652425663.

74652425647 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-74652425647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74652425594 and 74652425603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74652425747) 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, 348843004 + ... + 348843217.

It is an arithmetic number, because the mean of its divisors is an integer number (18837527994).

Almost surely, 2^74652425647 is an apocalyptic number.

74652425647 is a deficient number, since it is larger than the sum of its proper divisors (697686329).

74652425647 is a wasteful number, since it uses less digits than its factorization.

74652425647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697686328.

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

The spelling of 74652425647 in words is "seventy-four billion, six hundred fifty-two million, four hundred twenty-five thousand, six hundred forty-seven".