31878422708 has 12 divisors (see below), whose sum is σ = 60858807072. Its totient is φ = 14490192120.

The previous prime is 31878422707. The next prime is 31878422731. The reversal of 31878422708 is 80722487813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31878422707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362254760 + ... + 362254847.

It is an arithmetic number, because the mean of its divisors is an integer number (5071567256).

Almost surely, 2^31878422708 is an apocalyptic number.

It is an amenable number.

31878422708 is a deficient number, since it is larger than the sum of its proper divisors (28980384364).

31878422708 is a wasteful number, since it uses less digits than its factorization.

31878422708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724509622 (or 724509620 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 31878422708 in words is "thirty-one billion, eight hundred seventy-eight million, four hundred twenty-two thousand, seven hundred eight".