31344522544189 has 2 divisors, whose sum is σ = 31344522544190. Its totient is φ = 31344522544188.

The previous prime is 31344522544177. The next prime is 31344522544319. The reversal of 31344522544189 is 98144522544313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31287052071289 + 57470472900 = 5593483^2 + 239730^2 .

It is a cyclic number.

It is not a de Polignac number, because 31344522544189 - 2²⁹ = 31343985673277 is a prime.

It is a super-2 number, since 2×31344522544189² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344522544109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672261272094 + 15672261272095.

It is an arithmetic number, because the mean of its divisors is an integer number (15672261272095).

Almost surely, 2^{31344522544189} is an apocalyptic number.

It is an amenable number.

31344522544189 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344522544189 is an equidigital number, since it uses as much as digits as its factorization.

31344522544189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16588800, while the sum is 55.

The spelling of 31344522544189 in words is "thirty-one trillion, three hundred forty-four billion, five hundred twenty-two million, five hundred forty-four thousand, one hundred eighty-nine".