1493979118417 has 2 divisors, whose sum is σ = 1493979118418. Its totient is φ = 1493979118416.

The previous prime is 1493979118339. The next prime is 1493979118433. The reversal of 1493979118417 is 7148119793941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1483253616321 + 10725502096 = 1217889^2 + 103564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493979118417 - 2³⁹ = 944223304529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1493979118487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746989559208 + 746989559209.

It is an arithmetic number, because the mean of its divisors is an integer number (746989559209).

Almost surely, 2^{1493979118417} is an apocalyptic number.

It is an amenable number.

1493979118417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493979118417 is an equidigital number, since it uses as much as digits as its factorization.

1493979118417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 64.

The spelling of 1493979118417 in words is "one trillion, four hundred ninety-three billion, nine hundred seventy-nine million, one hundred eighteen thousand, four hundred seventeen".