31881484088 has 8 divisors (see below), whose sum is σ = 59777782680. Its totient is φ = 15940742040.

The previous prime is 31881484079. The next prime is 31881484181. The reversal of 31881484088 is 88048418813.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1992592748 + ... + 1992592763.

It is an arithmetic number, because the mean of its divisors is an integer number (7472222835).

Almost surely, 2^31881484088 is an apocalyptic number.

It is an amenable number.

31881484088 is a deficient number, since it is larger than the sum of its proper divisors (27896298592).

31881484088 is a wasteful number, since it uses less digits than its factorization.

31881484088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985185517 (or 3985185513 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 53.

The spelling of 31881484088 in words is "thirty-one billion, eight hundred eighty-one million, four hundred eighty-four thousand, eighty-eight".