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12807134877 = 34269044959
BaseRepresentation
bin10111110110101110…
…10101111010011101
31020001112212212020210
423323113111322131
5202212111304002
65514501203033
7632241564435
oct137327257235
936045785223
1012807134877
115482325a99
122595100479
131291445124
14896cc32c5
154ee55696c
hex2fb5d5e9d

12807134877 has 4 divisors (see below), whose sum is σ = 17076179840. Its totient is φ = 8538089916.

The previous prime is 12807134869. The next prime is 12807134929. The reversal of 12807134877 is 77843170821.

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 not a de Polignac number, because 12807134877 - 23 = 12807134869 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 (12807134867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134522477 + ... + 2134522482.

It is an arithmetic number, because the mean of its divisors is an integer number (4269044960).

Almost surely, 212807134877 is an apocalyptic number.

It is an amenable number.

12807134877 is a deficient number, since it is larger than the sum of its proper divisors (4269044963).

12807134877 is an equidigital number, since it uses as much as digits as its factorization.

12807134877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269044962.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 12807134877 in words is "twelve billion, eight hundred seven million, one hundred thirty-four thousand, eight hundred seventy-seven".

Divisors: 1 3 4269044959 12807134877