1493668219428 has 864 divisors, whose sum is σ = 5314558878720. Its totient is φ = 355364755200.

The previous prime is 1493668219391. The next prime is 1493668219481. The reversal of 1493668219428 is 8249128663941.

1493668219428 is a `hidden beast` number, since 1 + 4 + 9 + 366 + 82 + 194 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 287 ways as a sum of consecutive naturals, for example, 1366576050 + ... + 1366577142.

Almost surely, 2^{1493668219428} is an apocalyptic number.

1493668219428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493668219428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2657279439360).

1493668219428 is an abundant number, since it is smaller than the sum of its proper divisors (3820890659292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1493668219428 is a wasteful number, since it uses less digits than its factorization.

1493668219428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1166 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 1493668219428 in words is "one trillion, four hundred ninety-three billion, six hundred sixty-eight million, two hundred nineteen thousand, four hundred twenty-eight".