31644264122 has 4 divisors (see below), whose sum is σ = 47466396186. Its totient is φ = 15822132060.

The previous prime is 31644264107. The next prime is 31644264139. The reversal of 31644264122 is 22146244613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31595418001 + 48846121 = 177751^2 + 6989^2 .

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 as a sum of consecutive naturals, namely, 7911066029 + ... + 7911066032.

Almost surely, 2^31644264122 is an apocalyptic number.

31644264122 is a deficient number, since it is larger than the sum of its proper divisors (15822132064).

31644264122 is a wasteful number, since it uses less digits than its factorization.

31644264122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15822132063.

The product of its digits is 55296, while the sum is 35.

The spelling of 31644264122 in words is "thirty-one billion, six hundred forty-four million, two hundred sixty-four thousand, one hundred twenty-two".