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12605941247 is a prime number
BaseRepresentation
bin10111011110101111…
…10110010111111111
31012112112022011110212
423233113312113333
5201304110104442
65442513023035
7624246506204
oct135727662777
935475264425
1012605941247
1153897a8269
122539854a7b
13125b860743
148782adcab
154dba63a82
hex2ef5f65ff

12605941247 has 2 divisors, whose sum is σ = 12605941248. Its totient is φ = 12605941246.

The previous prime is 12605941213. The next prime is 12605941261. The reversal of 12605941247 is 74214950621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12605941247 - 212 = 12605937151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12605941207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302970623 + 6302970624.

It is an arithmetic number, because the mean of its divisors is an integer number (6302970624).

Almost surely, 212605941247 is an apocalyptic number.

12605941247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605941247 is an equidigital number, since it uses as much as digits as its factorization.

12605941247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 12605941247 in words is "twelve billion, six hundred five million, nine hundred forty-one thousand, two hundred forty-seven".