74622622647 has 32 divisors (see below), whose sum is σ = 104595321600. Its totient is φ = 47269313280.

The previous prime is 74622622639. The next prime is 74622622651.

74622622647 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74622622647 - 2³ = 74622622639 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 74622622596 and 74622622605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74622622247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1825648 + ... + 1866074.

It is an arithmetic number, because the mean of its divisors is an integer number (3268603800).

Almost surely, 2^74622622647 is an apocalyptic number.

74622622647 is a deficient number, since it is larger than the sum of its proper divisors (29972698953).

74622622647 is a wasteful number, since it uses less digits than its factorization.

74622622647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863.

The product of its digits is 2709504, while the sum is 48.

The spelling of 74622622647 in words is "seventy-four billion, six hundred twenty-two million, six hundred twenty-two thousand, six hundred forty-seven".