31288856348 has 6 divisors (see below), whose sum is σ = 54755498616. Its totient is φ = 15644428172.

The previous prime is 31288856329. The next prime is 31288856353. The reversal of 31288856348 is 84365888213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31288856293 and 31288856302.

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, 3911107040 + ... + 3911107047.

It is an arithmetic number, because the mean of its divisors is an integer number (9125916436).

Almost surely, 2^31288856348 is an apocalyptic number.

It is an amenable number.

31288856348 is a deficient number, since it is larger than the sum of its proper divisors (23466642268).

31288856348 is a wasteful number, since it uses less digits than its factorization.

31288856348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822214091 (or 7822214089 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 56.

The spelling of 31288856348 in words is "thirty-one billion, two hundred eighty-eight million, eight hundred fifty-six thousand, three hundred forty-eight".