1428916822891 has 16 divisors (see below), whose sum is σ = 1482774958080. Its totient is φ = 1375555440960.

The previous prime is 1428916822831. The next prime is 1428916822933. The reversal of 1428916822891 is 1982286198241.

It is not a de Polignac number, because 1428916822891 - 2¹⁵ = 1428916790123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428916822831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7409496 + ... + 7599898.

It is an arithmetic number, because the mean of its divisors is an integer number (92673434880).

Almost surely, 2^{1428916822891} is an apocalyptic number.

1428916822891 is a deficient number, since it is larger than the sum of its proper divisors (53858135189).

1428916822891 is a wasteful number, since it uses less digits than its factorization.

1428916822891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191706.

The product of its digits is 7962624, while the sum is 61.

The spelling of 1428916822891 in words is "one trillion, four hundred twenty-eight billion, nine hundred sixteen million, eight hundred twenty-two thousand, eight hundred ninety-one".