74676867647 has 4 divisors (see below), whose sum is σ = 74756566416. Its totient is φ = 74597168880.

The previous prime is 74676867641. The next prime is 74676867689.

74676867647 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 not a de Polignac number, because 74676867647 - 2⁴ = 74676867631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74676867641) 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, 39847979 + ... + 39849852.

It is an arithmetic number, because the mean of its divisors is an integer number (18689141604).

Almost surely, 2^74676867647 is an apocalyptic number.

74676867647 is a deficient number, since it is larger than the sum of its proper divisors (79698769).

74676867647 is an equidigital number, since it uses as much as digits as its factorization.

74676867647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79698768.

The product of its digits is 398297088, while the sum is 68.

The spelling of 74676867647 in words is "seventy-four billion, six hundred seventy-six million, eight hundred sixty-seven thousand, six hundred forty-seven".