1428586578643 has 16 divisors (see below), whose sum is σ = 1793322155520. Its totient is φ = 1109618078976.

The previous prime is 1428586578641. The next prime is 1428586578667. The reversal of 1428586578643 is 3468756858241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1428586578643 - 2¹ = 1428586578641 is a prime.

It is a super-2 number, since 2×1428586578643² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1428586578641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233502430 + ... + 233508547.

It is an arithmetic number, because the mean of its divisors is an integer number (112082634720).

Almost surely, 2^{1428586578643} is an apocalyptic number.

1428586578643 is a deficient number, since it is larger than the sum of its proper divisors (364735576877).

1428586578643 is a wasteful number, since it uses less digits than its factorization.

1428586578643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467011026.

The product of its digits is 309657600, while the sum is 67.

The spelling of 1428586578643 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-six million, five hundred seventy-eight thousand, six hundred forty-three".