31734475118 has 4 divisors (see below), whose sum is σ = 47601712680. Its totient is φ = 15867237558.

The previous prime is 31734475109. The next prime is 31734475133. The reversal of 31734475118 is 81157443713.

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

It is a super-2 number, since 2×31734475118² (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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7933618778 + ... + 7933618781.

It is an arithmetic number, because the mean of its divisors is an integer number (11900428170).

Almost surely, 2^31734475118 is an apocalyptic number.

31734475118 is a deficient number, since it is larger than the sum of its proper divisors (15867237562).

31734475118 is a wasteful number, since it uses less digits than its factorization.

31734475118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15867237561.

The product of its digits is 282240, while the sum is 44.

The spelling of 31734475118 in words is "thirty-one billion, seven hundred thirty-four million, four hundred seventy-five thousand, one hundred eighteen".