31000189863204 has 36 divisors (see below), whose sum is σ = 79242058366380. Its totient is φ = 10217291040000.

The previous prime is 31000189863191. The next prime is 31000189863239. The reversal of 31000189863204 is 40236898100013.

31000189863204 is a `hidden beast` number, since 3 + 1 + 0 + 0 + 0 + 1 + 8 + 9 + 8 + 632 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13138595078400 + 17861594784804 = 3624720^2 + 4226298^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×31000189863204² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31000189863204.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4837729297 + ... + 4837735704.

It is an arithmetic number, because the mean of its divisors is an integer number (2201168287955).

Almost surely, 2^{31000189863204} is an apocalyptic number.

It is an amenable number.

31000189863204 is an abundant number, since it is smaller than the sum of its proper divisors (48241868503176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31000189863204 is a wasteful number, since it uses less digits than its factorization.

31000189863204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675465100 (or 9675465095 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 31000189863204 in words is "thirty-one trillion, one hundred eighty-nine million, eight hundred sixty-three thousand, two hundred four".