318880416253 has 6 divisors (see below), whose sum is σ = 370942525086. Its totient is φ = 273326071032.

The previous prime is 318880416251. The next prime is 318880416259. The reversal of 318880416253 is 352614088813.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 310869808249 + 8010608004 = 557557^2 + 89502^2 .

It is not a de Polignac number, because 318880416253 - 2¹ = 318880416251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 6507763597 = 318880416253 / (3 + 1 + 8 + 8 + 8 + 0 + 4 + 1 + 6 + 2 + 5 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 318880416197 and 318880416206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318880416251) 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 5 ways as a sum of consecutive naturals, for example, 3253881750 + ... + 3253881847.

It is an arithmetic number, because the mean of its divisors is an integer number (61823754181).

Almost surely, 2^318880416253 is an apocalyptic number.

It is an amenable number.

318880416253 is a deficient number, since it is larger than the sum of its proper divisors (52062108833).

318880416253 is an equidigital number, since it uses as much as digits as its factorization.

318880416253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507763611 (or 6507763604 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 318880416253 in words is "three hundred eighteen billion, eight hundred eighty million, four hundred sixteen thousand, two hundred fifty-three".