1428346221049 has 8 divisors (see below), whose sum is σ = 1558226625120. Its totient is φ = 1298470941600.

The previous prime is 1428346221013. The next prime is 1428346221059. The reversal of 1428346221049 is 9401226438241.

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

It is a cyclic number.

It is not a de Polignac number, because 1428346221049 - 2¹³ = 1428346212857 is a prime.

It is a super-3 number, since 3×1428346221049³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1428346221059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686359 + ... + 1824220.

It is an arithmetic number, because the mean of its divisors is an integer number (194778328140).

Almost surely, 2^{1428346221049} is an apocalyptic number.

It is an amenable number.

1428346221049 is a deficient number, since it is larger than the sum of its proper divisors (129880404071).

1428346221049 is a wasteful number, since it uses less digits than its factorization.

1428346221049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562311.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 1428346221049 in words is "one trillion, four hundred twenty-eight billion, three hundred forty-six million, two hundred twenty-one thousand, forty-nine".