31712425853 has 2 divisors, whose sum is σ = 31712425854. Its totient is φ = 31712425852.

The previous prime is 31712425819. The next prime is 31712425859. The reversal of 31712425853 is 35852421713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26881897849 + 4830528004 = 163957^2 + 69502^2 .

It is an emirp because it is prime and its reverse (35852421713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31712425853 - 2¹⁸ = 31712163709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31712425853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31712425859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15856212926 + 15856212927.

It is an arithmetic number, because the mean of its divisors is an integer number (15856212927).

Almost surely, 2^31712425853 is an apocalyptic number.

It is an amenable number.

31712425853 is a deficient number, since it is larger than the sum of its proper divisors (1).

31712425853 is an equidigital number, since it uses as much as digits as its factorization.

31712425853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 41.

The spelling of 31712425853 in words is "thirty-one billion, seven hundred twelve million, four hundred twenty-five thousand, eight hundred fifty-three".