31634820117 has 6 divisors (see below), whose sum is σ = 45694740182. Its totient is φ = 21089880072.

The previous prime is 31634820053. The next prime is 31634820131. The reversal of 31634820117 is 71102843613.

It is a happy number.

31634820117 is a `hidden beast` number, since 3 + 1 + 63 + 482 + 0 + 117 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20390126436 + 11244693681 = 142794^2 + 106041^2 .

It is not a de Polignac number, because 31634820117 - 2⁶ = 31634820053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31634820157) 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 5 ways as a sum of consecutive naturals, for example, 1757489998 + ... + 1757490015.

Almost surely, 2^31634820117 is an apocalyptic number.

It is an amenable number.

31634820117 is a deficient number, since it is larger than the sum of its proper divisors (14059920065).

31634820117 is a wasteful number, since it uses less digits than its factorization.

31634820117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514980019 (or 3514980016 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 31634820117 in words is "thirty-one billion, six hundred thirty-four million, eight hundred twenty thousand, one hundred seventeen".