31417322643 has 24 divisors (see below), whose sum is σ = 54593177600. Its totient is φ = 17007873264.

The previous prime is 31417322641. The next prime is 31417322647. The reversal of 31417322643 is 34622371413.

31417322643 is a `hidden beast` number, since 3 + 1 + 4 + 1 + 7 + 3 + 2 + 2 + 643 = 666.

It is not a de Polignac number, because 31417322643 - 2¹ = 31417322641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31417322598 and 31417322607.

It is not an unprimeable number, because it can be changed into a prime (31417322641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13122163 + ... + 13124556.

Almost surely, 2^31417322643 is an apocalyptic number.

31417322643 is a deficient number, since it is larger than the sum of its proper divisors (23175854957).

31417322643 is a wasteful number, since it uses less digits than its factorization.

31417322643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26246751 (or 26246748 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The spelling of 31417322643 in words is "thirty-one billion, four hundred seventeen million, three hundred twenty-two thousand, six hundred forty-three".