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91279360267 is a prime number
BaseRepresentation
bin101010100000010101…
…1001000000100001011
322201121102012221110221
41111000223020010023
52443420004012032
6105533321250511
76410662521604
oct1250053100413
9281542187427
1091279360267
1135790901427
1215835333a37
1387b8bb18a4
1445bcba8dab
152593841597
hex1540ac810b

91279360267 has 2 divisors, whose sum is σ = 91279360268. Its totient is φ = 91279360266.

The previous prime is 91279360241. The next prime is 91279360279. The reversal of 91279360267 is 76206397219.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-91279360267 is a prime.

It is a super-2 number, since 2×912793602672 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91279363267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45639680133 + 45639680134.

It is an arithmetic number, because the mean of its divisors is an integer number (45639680134).

Almost surely, 291279360267 is an apocalyptic number.

91279360267 is a deficient number, since it is larger than the sum of its proper divisors (1).

91279360267 is an equidigital number, since it uses as much as digits as its factorization.

91279360267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 91279360267 in words is "ninety-one billion, two hundred seventy-nine million, three hundred sixty thousand, two hundred sixty-seven".