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61068100901 is a prime number
BaseRepresentation
bin111000110111111100…
…010100010100100101
312211121221101221201212
4320313330110110211
52000031413212101
644015421201205
74261216202333
oct706774242445
9184557357655
1061068100901
1123998395085
12ba03700205
1359b2b1c662
142d5468ab53
1518c63d71bb
hexe37f14525

61068100901 has 2 divisors, whose sum is σ = 61068100902. Its totient is φ = 61068100900.

The previous prime is 61068100867. The next prime is 61068100903. The reversal of 61068100901 is 10900186016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59122408801 + 1945692100 = 243151^2 + 44110^2 .

It is a cyclic number.

It is not a de Polignac number, because 61068100901 - 218 = 61067838757 is a prime.

Together with 61068100903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61068100903) 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, 30534050450 + 30534050451.

It is an arithmetic number, because the mean of its divisors is an integer number (30534050451).

Almost surely, 261068100901 is an apocalyptic number.

It is an amenable number.

61068100901 is a deficient number, since it is larger than the sum of its proper divisors (1).

61068100901 is an equidigital number, since it uses as much as digits as its factorization.

61068100901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

Adding to 61068100901 its reverse (10900186016), we get a palindrome (71968286917).

The spelling of 61068100901 in words is "sixty-one billion, sixty-eight million, one hundred thousand, nine hundred one".