31806848355 has 16 divisors (see below), whose sum is σ = 51366576384. Its totient is φ = 16805112800.

The previous prime is 31806848329. The next prime is 31806848371. The reversal of 31806848355 is 55384860813.

It is a happy number.

It is not a de Polignac number, because 31806848355 - 2⁹ = 31806847843 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 31806848298 and 31806848307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9907071 + ... + 9910280.

It is an arithmetic number, because the mean of its divisors is an integer number (3210411024).

Almost surely, 2^31806848355 is an apocalyptic number.

31806848355 is a deficient number, since it is larger than the sum of its proper divisors (19559728029).

31806848355 is a wasteful number, since it uses less digits than its factorization.

31806848355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19817466.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 31806848355 in words is "thirty-one billion, eight hundred six million, eight hundred forty-eight thousand, three hundred fifty-five".