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27028129967 = 127212819921
BaseRepresentation
bin11001001011000000…
…001000100010101111
32120202122012021002122
4121023000020202233
5420323200124332
620225550343155
71644532212506
oct311300104257
976678167078
1027028129967
111050a7470a3
1252a37baabb
13271977c617
14144588583d
15a82c8ec12
hex64b0088af

27028129967 has 4 divisors (see below), whose sum is σ = 27240950016. Its totient is φ = 26815309920.

The previous prime is 27028129957. The next prime is 27028130011. The reversal of 27028129967 is 76992182072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27028129967 - 24 = 27028129951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27028129957) 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, 106409834 + ... + 106410087.

It is an arithmetic number, because the mean of its divisors is an integer number (6810237504).

Almost surely, 227028129967 is an apocalyptic number.

27028129967 is a deficient number, since it is larger than the sum of its proper divisors (212820049).

27028129967 is a wasteful number, since it uses less digits than its factorization.

27028129967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212820048.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 27028129967 in words is "twenty-seven billion, twenty-eight million, one hundred twenty-nine thousand, nine hundred sixty-seven".

Divisors: 1 127 212819921 27028129967