318453991461 has 48 divisors (see below), whose sum is σ = 495471600000. Its totient is φ = 196360464384.

The previous prime is 318453991423. The next prime is 318453991507. The reversal of 318453991461 is 164199354813.

318453991461 is a `hidden beast` number, since 3 + 18 + 4 + 539 + 91 + 4 + 6 + 1 = 666.

It is not a de Polignac number, because 318453991461 - 2⁶ = 318453991397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318453991398 and 318453991407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318453998461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45122445 + ... + 45129501.

It is an arithmetic number, because the mean of its divisors is an integer number (10322325000).

Almost surely, 2^318453991461 is an apocalyptic number.

It is an amenable number.

318453991461 is a deficient number, since it is larger than the sum of its proper divisors (177017608539).

318453991461 is a wasteful number, since it uses less digits than its factorization.

318453991461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12138 (or 12135 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 318453991461 in words is "three hundred eighteen billion, four hundred fifty-three million, nine hundred ninety-one thousand, four hundred sixty-one".