1428491549493 has 12 divisors (see below), whose sum is σ = 2065052877888. Its totient is φ = 951554071080.

The previous prime is 1428491549473. The next prime is 1428491549501. The reversal of 1428491549493 is 3949451948241.

1428491549493 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 4 + 91 + 54 + 9 + 493 = 666.

It is not a de Polignac number, because 1428491549493 - 2¹⁴ = 1428491533109 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428491549493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428491549413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64457355 + ... + 64479512.

It is an arithmetic number, because the mean of its divisors is an integer number (172087739824).

Almost surely, 2^{1428491549493} is an apocalyptic number.

It is an amenable number.

1428491549493 is a deficient number, since it is larger than the sum of its proper divisors (636561328395).

1428491549493 is a wasteful number, since it uses less digits than its factorization.

1428491549493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128938104 (or 128938101 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 1428491549493 in words is "one trillion, four hundred twenty-eight billion, four hundred ninety-one million, five hundred forty-nine thousand, four hundred ninety-three".