31670473444 has 27 divisors (see below), whose sum is σ = 56041118203. Its totient is φ = 15660656000.

The previous prime is 31670473421. The next prime is 31670473447. The reversal of 31670473444 is 44437407613.

The square root of 31670473444 is 177962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1686087844 + 29984385600 = 41062^2 + 173160^2 .

It is a super-2 number, since 2×31670473444² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31670473444.

It is not an unprimeable number, because it can be changed into a prime (31670473447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35947884 + ... + 35948764.

Almost surely, 2^31670473444 is an apocalyptic number.

31670473444 is the 177962-nd square number.

It is an amenable number.

31670473444 is a deficient number, since it is larger than the sum of its proper divisors (24370644759).

31670473444 is an frugal number, since it uses more digits than its factorization.

31670473444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 31670473444 in words is "thirty-one billion, six hundred seventy million, four hundred seventy-three thousand, four hundred forty-four".