1493105836657 has 8 divisors (see below), whose sum is σ = 1496488976640. Its totient is φ = 1489723806000.

The previous prime is 1493105836619. The next prime is 1493105836687. The reversal of 1493105836657 is 7566385013941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493105836657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1493105836687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2447907 + ... + 2996407.

It is an arithmetic number, because the mean of its divisors is an integer number (187061122080).

Almost surely, 2^{1493105836657} is an apocalyptic number.

It is an amenable number.

1493105836657 is a deficient number, since it is larger than the sum of its proper divisors (3383139983).

1493105836657 is an equidigital number, since it uses as much as digits as its factorization.

1493105836657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554663.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 1493105836657 in words is "one trillion, four hundred ninety-three billion, one hundred five million, eight hundred thirty-six thousand, six hundred fifty-seven".