1493872308217 has 2 divisors, whose sum is σ = 1493872308218. Its totient is φ = 1493872308216.

The previous prime is 1493872308163. The next prime is 1493872308277. The reversal of 1493872308217 is 7128032783941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 860783150656 + 633089157561 = 927784^2 + 795669^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493872308217 - 2²⁷ = 1493738090489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1493872308277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746936154108 + 746936154109.

It is an arithmetic number, because the mean of its divisors is an integer number (746936154109).

Almost surely, 2^{1493872308217} is an apocalyptic number.

It is an amenable number.

1493872308217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493872308217 is an equidigital number, since it uses as much as digits as its factorization.

1493872308217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 1493872308217 in words is "one trillion, four hundred ninety-three billion, eight hundred seventy-two million, three hundred eight thousand, two hundred seventeen".