1493457817427 has 4 divisors (see below), whose sum is σ = 1497889443336. Its totient is φ = 1489026191520.

The previous prime is 1493457817391. The next prime is 1493457817429. The reversal of 1493457817427 is 7247187543941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1493457817427 - 2²⁴ = 1493441040211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1493457817427.

It is not an unprimeable number, because it can be changed into a prime (1493457817429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215812449 + ... + 2215813122.

It is an arithmetic number, because the mean of its divisors is an integer number (374472360834).

Almost surely, 2^{1493457817427} is an apocalyptic number.

1493457817427 is a deficient number, since it is larger than the sum of its proper divisors (4431625909).

1493457817427 is an equidigital number, since it uses as much as digits as its factorization.

1493457817427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431625908.

The product of its digits is 47416320, while the sum is 62.

The spelling of 1493457817427 in words is "one trillion, four hundred ninety-three billion, four hundred fifty-seven million, eight hundred seventeen thousand, four hundred twenty-seven".