31108089748 has 12 divisors (see below), whose sum is σ = 54530964180. Its totient is φ = 15527814272.

The previous prime is 31108089709. The next prime is 31108089757. The reversal of 31108089748 is 84798080113.

It can be written as a sum of positive squares in 2 ways, for example, as 24087660804 + 7020428944 = 155202^2 + 83788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6554983 + ... + 6559726.

It is an arithmetic number, because the mean of its divisors is an integer number (4544247015).

Almost surely, 2^31108089748 is an apocalyptic number.

It is an amenable number.

31108089748 is a deficient number, since it is larger than the sum of its proper divisors (23422874432).

31108089748 is a wasteful number, since it uses less digits than its factorization.

31108089748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13115306 (or 13115304 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 31108089748 in words is "thirty-one billion, one hundred eight million, eighty-nine thousand, seven hundred forty-eight".