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1428715866827 is a prime number
BaseRepresentation
bin10100110010100110000…
…110100000101011001011
312001120202122221222022002
4110302212012200223023
5141402002230214302
63012202031221215
7205135624331264
oct24624606405313
95046678858262
101428715866827
11500a07951037
121b0a8a07780b
13a495bc2b052
144d2162a396b
152726e17ec02
hex14ca61a0acb

1428715866827 has 2 divisors, whose sum is σ = 1428715866828. Its totient is φ = 1428715866826.

The previous prime is 1428715866733. The next prime is 1428715866881. The reversal of 1428715866827 is 7286685178241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1428715866827 - 218 = 1428715604683 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428715566827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714357933413 + 714357933414.

It is an arithmetic number, because the mean of its divisors is an integer number (714357933414).

Almost surely, 21428715866827 is an apocalyptic number.

1428715866827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428715866827 is an equidigital number, since it uses as much as digits as its factorization.

1428715866827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72253440, while the sum is 65.

The spelling of 1428715866827 in words is "one trillion, four hundred twenty-eight billion, seven hundred fifteen million, eight hundred sixty-six thousand, eight hundred twenty-seven".