31628214572 has 24 divisors (see below), whose sum is σ = 58123768416. Its totient is φ = 15030183168.

The previous prime is 31628214571. The next prime is 31628214589. The reversal of 31628214572 is 27541282613.

It is not an unprimeable number, because it can be changed into a prime (31628214571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080413 + ... + 1109300.

It is an arithmetic number, because the mean of its divisors is an integer number (2421823684).

Almost surely, 2^31628214572 is an apocalyptic number.

It is an amenable number.

31628214572 is a deficient number, since it is larger than the sum of its proper divisors (26495553844).

31628214572 is a wasteful number, since it uses less digits than its factorization.

31628214572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189897 (or 2189895 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The spelling of 31628214572 in words is "thirty-one billion, six hundred twenty-eight million, two hundred fourteen thousand, five hundred seventy-two".