31275474630893 has 2 divisors, whose sum is σ = 31275474630894. Its totient is φ = 31275474630892.

The previous prime is 31275474630853. The next prime is 31275474630913. The reversal of 31275474630893 is 39803647457213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31275183826084 + 290804809 = 5592422^2 + 17053^2 .

It is a cyclic number.

It is not a de Polignac number, because 31275474630893 - 2⁸ = 31275474630637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31275474630823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15637737315446 + 15637737315447.

It is an arithmetic number, because the mean of its divisors is an integer number (15637737315447).

It is a 1-persistent number, because it is pandigital, but 2⋅31275474630893 = 62550949261786 is not.

Almost surely, 2^{31275474630893} is an apocalyptic number.

It is an amenable number.

31275474630893 is a deficient number, since it is larger than the sum of its proper divisors (1).

31275474630893 is an equidigital number, since it uses as much as digits as its factorization.

31275474630893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 31275474630893 in words is "thirty-one trillion, two hundred seventy-five billion, four hundred seventy-four million, six hundred thirty thousand, eight hundred ninety-three".