1427768848891 has 32 divisors (see below), whose sum is σ = 1878708326400. Its totient is φ = 1051210651680.

The previous prime is 1427768848889. The next prime is 1427768848903. The reversal of 1427768848891 is 1988488677241.

It is not a de Polignac number, because 1427768848891 - 2¹ = 1427768848889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427768848861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733015 + ... + 1841968.

It is an arithmetic number, because the mean of its divisors is an integer number (58709635200).

Almost surely, 2^{1427768848891} is an apocalyptic number.

1427768848891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1427768848891 is a deficient number, since it is larger than the sum of its proper divisors (450939477509).

1427768848891 is a wasteful number, since it uses less digits than its factorization.

1427768848891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575399.

The product of its digits is 346816512, while the sum is 73.

The spelling of 1427768848891 in words is "one trillion, four hundred twenty-seven billion, seven hundred sixty-eight million, eight hundred forty-eight thousand, eight hundred ninety-one".