318378449259 has 40 divisors (see below), whose sum is σ = 513124458000. Its totient is φ = 195566664384.

The previous prime is 318378449197. The next prime is 318378449297. The reversal of 318378449259 is 952944873813.

318378449259 is a `hidden beast` number, since 3 + 1 + 8 + 378 + 4 + 4 + 9 + 259 = 666.

It is not a de Polignac number, because 318378449259 - 2⁷ = 318378449131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318378449196 and 318378449205.

It is not an unprimeable number, because it can be changed into a prime (318378449359) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 299617 + ... + 852365.

It is an arithmetic number, because the mean of its divisors is an integer number (12828111450).

Almost surely, 2^318378449259 is an apocalyptic number.

318378449259 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

318378449259 is a deficient number, since it is larger than the sum of its proper divisors (194746008741).

318378449259 is a wasteful number, since it uses less digits than its factorization.

318378449259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553321 (or 553312 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 318378449259 in words is "three hundred eighteen billion, three hundred seventy-eight million, four hundred forty-nine thousand, two hundred fifty-nine".