1493174345893 has 4 divisors (see below), whose sum is σ = 1493177205420. Its totient is φ = 1493171486368.

The previous prime is 1493174345881. The next prime is 1493174345917. The reversal of 1493174345893 is 3985434713941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 932881676164 + 560292669729 = 965858^2 + 748527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493174345893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1493174342893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398608 + ... + 1773481.

It is an arithmetic number, because the mean of its divisors is an integer number (373294301355).

Almost surely, 2^{1493174345893} is an apocalyptic number.

It is an amenable number.

1493174345893 is a deficient number, since it is larger than the sum of its proper divisors (2859527).

1493174345893 is an equidigital number, since it uses as much as digits as its factorization.

1493174345893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859526.

The product of its digits is 39191040, while the sum is 61.

The spelling of 1493174345893 in words is "one trillion, four hundred ninety-three billion, one hundred seventy-four million, three hundred forty-five thousand, eight hundred ninety-three".