31643135422 has 8 divisors (see below), whose sum is σ = 48065522400. Its totient is φ = 15621294624.

The previous prime is 31643135417. The next prime is 31643135443. The reversal of 31643135422 is 22453134613.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31643135422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100136347 + ... + 100136662.

It is an arithmetic number, because the mean of its divisors is an integer number (6008190300).

Almost surely, 2^31643135422 is an apocalyptic number.

31643135422 is a deficient number, since it is larger than the sum of its proper divisors (16422386978).

31643135422 is a wasteful number, since it uses less digits than its factorization.

31643135422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200273090.

The product of its digits is 51840, while the sum is 34.

The spelling of 31643135422 in words is "thirty-one billion, six hundred forty-three million, one hundred thirty-five thousand, four hundred twenty-two".