31607749675273 has 2 divisors, whose sum is σ = 31607749675274. Its totient is φ = 31607749675272.

The previous prime is 31607749675247. The next prime is 31607749675279. The reversal of 31607749675273 is 37257694770613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23402257657744 + 8205492017529 = 4837588^2 + 2864523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31607749675273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31607749675199 and 31607749675208.

It is not a weakly prime, because it can be changed into another prime (31607749675279) 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 as a sum of consecutive naturals, namely, 15803874837636 + 15803874837637.

It is an arithmetic number, because the mean of its divisors is an integer number (15803874837637).

Almost surely, 2^{31607749675273} is an apocalyptic number.

It is an amenable number.

31607749675273 is a deficient number, since it is larger than the sum of its proper divisors (1).

31607749675273 is an equidigital number, since it uses as much as digits as its factorization.

31607749675273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280052640, while the sum is 67.

The spelling of 31607749675273 in words is "thirty-one trillion, six hundred seven billion, seven hundred forty-nine million, six hundred seventy-five thousand, two hundred seventy-three".