1208340715997 has 2 divisors, whose sum is σ = 1208340715998. Its totient is φ = 1208340715996.

The previous prime is 1208340715943. The next prime is 1208340716069. The reversal of 1208340715997 is 7995170438021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166099779321 + 42240936676 = 1079861^2 + 205526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1208340715997 is a prime.

It is a super-2 number, since 2×1208340715997² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1208340715397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604170357998 + 604170357999.

It is an arithmetic number, because the mean of its divisors is an integer number (604170357999).

Almost surely, 2^{1208340715997} is an apocalyptic number.

It is an amenable number.

1208340715997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1208340715997 is an equidigital number, since it uses as much as digits as its factorization.

1208340715997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 1208340715997 in words is "one trillion, two hundred eight billion, three hundred forty million, seven hundred fifteen thousand, nine hundred ninety-seven".