318572422749 has 24 divisors (see below), whose sum is σ = 526229713152. Its totient is φ = 181926329760.

The previous prime is 318572422747. The next prime is 318572422759. The reversal of 318572422749 is 947224275813.

318572422749 is a `hidden beast` number, since 3 + 1 + 8 + 572 + 4 + 2 + 27 + 49 = 666.

It is not a de Polignac number, because 318572422749 - 2¹ = 318572422747 is a prime.

It is a super-3 number, since 3×318572422749³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318572422695 and 318572422704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318572422741) 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 23 ways as a sum of consecutive naturals, for example, 1497462 + ... + 1696919.

It is an arithmetic number, because the mean of its divisors is an integer number (21926238048).

Almost surely, 2^318572422749 is an apocalyptic number.

It is an amenable number.

318572422749 is a deficient number, since it is larger than the sum of its proper divisors (207657290403).

318572422749 is a wasteful number, since it uses less digits than its factorization.

318572422749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195977 (or 3195974 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

It can be divided in two parts, 318572 and 422749, that added together give a square (741321 = 861²).

The spelling of 318572422749 in words is "three hundred eighteen billion, five hundred seventy-two million, four hundred twenty-two thousand, seven hundred forty-nine".