31647628484 has 12 divisors (see below), whose sum is σ = 55465647804. Its totient is φ = 15800300544.

The previous prime is 31647628477. The next prime is 31647628489. The reversal of 31647628484 is 48482674613.

It can be written as a sum of positive squares in 2 ways, for example, as 19858446400 + 11789182084 = 140920^2 + 108578^2 .

It is a super-3 number, since 3×31647628484³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31647628489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5875397 + ... + 5880780.

It is an arithmetic number, because the mean of its divisors is an integer number (4622137317).

Almost surely, 2^31647628484 is an apocalyptic number.

It is an amenable number.

31647628484 is a deficient number, since it is larger than the sum of its proper divisors (23818019320).

31647628484 is a wasteful number, since it uses less digits than its factorization.

31647628484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756854 (or 11756852 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 53.

The spelling of 31647628484 in words is "thirty-one billion, six hundred forty-seven million, six hundred twenty-eight thousand, four hundred eighty-four".