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12796479979 is a prime number
BaseRepresentation
bin10111110101011101…
…01100100111101011
31020000210211112110221
423322232230213223
5202201344324404
65513440550511
7632052166543
oct137256544753
936023745427
1012796479979
115477308898
122591622437
13128c18445a
1489570c323
154ed64e954
hex2fabac9eb

12796479979 has 2 divisors, whose sum is σ = 12796479980. Its totient is φ = 12796479978.

The previous prime is 12796479967. The next prime is 12796480001. The reversal of 12796479979 is 97997469721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12796479979 - 215 = 12796447211 is a prime.

It is not a weakly prime, because it can be changed into another prime (12796479079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6398239989 + 6398239990.

It is an arithmetic number, because the mean of its divisors is an integer number (6398239990).

Almost surely, 212796479979 is an apocalyptic number.

12796479979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12796479979 is an equidigital number, since it uses as much as digits as its factorization.

12796479979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108020304, while the sum is 70.

The spelling of 12796479979 in words is "twelve billion, seven hundred ninety-six million, four hundred seventy-nine thousand, nine hundred seventy-nine".