1428585872881 has 4 divisors (see below), whose sum is σ = 1428599667952. Its totient is φ = 1428572077812.

The previous prime is 1428585872873. The next prime is 1428585872927. The reversal of 1428585872881 is 1882785858241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1428585872881 - 2³ = 1428585872873 is a prime.

It is a super-2 number, since 2×1428585872881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428585872821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6741015 + ... + 6949708.

It is an arithmetic number, because the mean of its divisors is an integer number (357149916988).

Almost surely, 2^{1428585872881} is an apocalyptic number.

It is an amenable number.

1428585872881 is a deficient number, since it is larger than the sum of its proper divisors (13795071).

1428585872881 is a wasteful number, since it uses less digits than its factorization.

1428585872881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13795070.

The product of its digits is 91750400, while the sum is 67.

The spelling of 1428585872881 in words is "one trillion, four hundred twenty-eight billion, five hundred eighty-five million, eight hundred seventy-two thousand, eight hundred eighty-one".