31734774669 has 16 divisors (see below), whose sum is σ = 45576558272. Its totient is φ = 19525373568.

The previous prime is 31734774641. The next prime is 31734774691. The reversal of 31734774669 is 96647743713.

It is not a de Polignac number, because 31734774669 - 2²⁹ = 31197903757 is a prime.

It is a super-2 number, since 2×31734774669² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31734754669) by changing a digit.

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, 137529 + ... + 287025.

It is an arithmetic number, because the mean of its divisors is an integer number (2848534892).

Almost surely, 2^31734774669 is an apocalyptic number.

31734774669 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

31734774669 is a deficient number, since it is larger than the sum of its proper divisors (13841783603).

31734774669 is a wasteful number, since it uses less digits than its factorization.

31734774669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154956.

The product of its digits is 16003008, while the sum is 57.

The spelling of 31734774669 in words is "thirty-one billion, seven hundred thirty-four million, seven hundred seventy-four thousand, six hundred sixty-nine".