1493467687697 has 2 divisors, whose sum is σ = 1493467687698. Its totient is φ = 1493467687696.

The previous prime is 1493467687639. The next prime is 1493467687711. The reversal of 1493467687697 is 7967867643941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439997600001 + 53470087696 = 1199999^2 + 231236^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493467687697 - 2¹⁶ = 1493467622161 is a prime.

It is not a weakly prime, because it can be changed into another prime (1493467687597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746733843848 + 746733843849.

It is an arithmetic number, because the mean of its divisors is an integer number (746733843849).

Almost surely, 2^{1493467687697} is an apocalyptic number.

It is an amenable number.

1493467687697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493467687697 is an equidigital number, since it uses as much as digits as its factorization.

1493467687697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304433152, while the sum is 77.

The spelling of 1493467687697 in words is "one trillion, four hundred ninety-three billion, four hundred sixty-seven million, six hundred eighty-seven thousand, six hundred ninety-seven".