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122879427467 is a prime number
BaseRepresentation
bin111001001110000101…
…1110100001110001011
3102202011200022200102012
41302130023310032023
54003124113134332
6132241112330135
711610031620446
oct1623413641613
9382150280365
10122879427467
1148127262645
121b9940a394b
13b7839041c4
145d3992465d
1532e2b7e3b2
hex1c9c2f438b

122879427467 has 2 divisors, whose sum is σ = 122879427468. Its totient is φ = 122879427466.

The previous prime is 122879427443. The next prime is 122879427479. The reversal of 122879427467 is 764724978221.

It is a strong prime.

It is an emirp because it is prime and its reverse (764724978221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122879427467 - 28 = 122879427211 is a prime.

It is not a weakly prime, because it can be changed into another prime (122879427367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61439713733 + 61439713734.

It is an arithmetic number, because the mean of its divisors is an integer number (61439713734).

Almost surely, 2122879427467 is an apocalyptic number.

122879427467 is a deficient number, since it is larger than the sum of its proper divisors (1).

122879427467 is an equidigital number, since it uses as much as digits as its factorization.

122879427467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18966528, while the sum is 59.

The spelling of 122879427467 in words is "one hundred twenty-two billion, eight hundred seventy-nine million, four hundred twenty-seven thousand, four hundred sixty-seven".