74834718563 has 16 divisors (see below), whose sum is σ = 82782798336. Its totient is φ = 67078059840.

The previous prime is 74834718547. The next prime is 74834718577. The reversal of 74834718563 is 36581743847.

It is a happy number.

It is not a de Polignac number, because 74834718563 - 2⁴ = 74834718547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74834718499 and 74834718508.

It is not an unprimeable number, because it can be changed into a prime (74834718463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2818970 + ... + 2845392.

It is an arithmetic number, because the mean of its divisors is an integer number (5173924896).

Almost surely, 2^74834718563 is an apocalyptic number.

74834718563 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

74834718563 is a deficient number, since it is larger than the sum of its proper divisors (7948079773).

74834718563 is a wasteful number, since it uses less digits than its factorization.

74834718563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30034.

The product of its digits is 13547520, while the sum is 56.

It can be divided in two parts, 74834 and 718563, that added together give a palindrome (793397).

The spelling of 74834718563 in words is "seventy-four billion, eight hundred thirty-four million, seven hundred eighteen thousand, five hundred sixty-three".