3251405409997 has 2 divisors, whose sum is σ = 3251405409998. Its totient is φ = 3251405409996.

The previous prime is 3251405409977. The next prime is 3251405410027. The reversal of 3251405409997 is 7999045041523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2066331500676 + 1185073909321 = 1437474^2 + 1088611^2 .

It is an emirp because it is prime and its reverse (7999045041523) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3251405409997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3251405409977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1625702704998 + 1625702704999.

It is an arithmetic number, because the mean of its divisors is an integer number (1625702704999).

Almost surely, 2^{3251405409997} is an apocalyptic number.

It is an amenable number.

3251405409997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3251405409997 is an equidigital number, since it uses as much as digits as its factorization.

3251405409997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 3251405409997 in words is "three trillion, two hundred fifty-one billion, four hundred five million, four hundred nine thousand, nine hundred ninety-seven".