318012516463 has 4 divisors (see below), whose sum is σ = 328270984768. Its totient is φ = 307754048160.

The previous prime is 318012516461. The next prime is 318012516469. The reversal of 318012516463 is 364615210813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364615210813 = 7 ⋅52087887259.

It is a cyclic number.

It is not a de Polignac number, because 318012516463 - 2¹ = 318012516461 is a prime.

It is a super-2 number, since 2×318012516463² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318012516461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5129234106 + ... + 5129234167.

It is an arithmetic number, because the mean of its divisors is an integer number (82067746192).

Almost surely, 2^318012516463 is an apocalyptic number.

318012516463 is a deficient number, since it is larger than the sum of its proper divisors (10258468305).

318012516463 is a wasteful number, since it uses less digits than its factorization.

318012516463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10258468304.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 318012516463 in words is "three hundred eighteen billion, twelve million, five hundred sixteen thousand, four hundred sixty-three".