313808631543 has 32 divisors (see below), whose sum is σ = 511905381120. Its totient is φ = 188409581280.

The previous prime is 313808631541. The next prime is 313808631553. The reversal of 313808631543 is 345136808313.

313808631543 is a `hidden beast` number, since 3 + 1 + 3 + 8 + 0 + 8 + 631 + 5 + 4 + 3 = 666.

It is not a de Polignac number, because 313808631543 - 2¹ = 313808631541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313808631541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4905580 + ... + 4969137.

It is an arithmetic number, because the mean of its divisors is an integer number (15997043160).

Almost surely, 2^313808631543 is an apocalyptic number.

313808631543 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

313808631543 is a deficient number, since it is larger than the sum of its proper divisors (198096749577).

313808631543 is a wasteful number, since it uses less digits than its factorization.

313808631543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9874844 (or 9874838 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 313808631543 in words is "three hundred thirteen billion, eight hundred eight million, six hundred thirty-one thousand, five hundred forty-three".