31426474205 has 16 divisors (see below), whose sum is σ = 43339950720. Its totient is φ = 21429189312.

The previous prime is 31426474199. The next prime is 31426474213. The reversal of 31426474205 is 50247462413.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31426474205 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2501834 + ... + 2514363.

It is an arithmetic number, because the mean of its divisors is an integer number (2708746920).

Almost surely, 2^31426474205 is an apocalyptic number.

31426474205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31426474205 is a deficient number, since it is larger than the sum of its proper divisors (11913476515).

31426474205 is a wasteful number, since it uses less digits than its factorization.

31426474205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016388.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 31426474205 in words is "thirty-one billion, four hundred twenty-six million, four hundred seventy-four thousand, two hundred five".