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12702071479 is a prime number
BaseRepresentation
bin10111101010001101…
…00011101010110111
31012210020012002100211
423311012203222313
5202003212241404
65500225250251
7626524553236
oct136506435267
935706162324
1012702071479
115428a96339
122565a93987
13127574aa36
14886d74b1d
154e5201b04
hex2f51a3ab7

12702071479 has 2 divisors, whose sum is σ = 12702071480. Its totient is φ = 12702071478.

The previous prime is 12702071449. The next prime is 12702071489. The reversal of 12702071479 is 97417020721.

It is a strong prime.

It is an emirp because it is prime and its reverse (97417020721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12702071479 - 27 = 12702071351 is a prime.

It is a super-2 number, since 2×127020714792 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12702071429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6351035739 + 6351035740.

It is an arithmetic number, because the mean of its divisors is an integer number (6351035740).

Almost surely, 212702071479 is an apocalyptic number.

12702071479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12702071479 is an equidigital number, since it uses as much as digits as its factorization.

12702071479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 12702071479 in words is "twelve billion, seven hundred two million, seventy-one thousand, four hundred seventy-nine".