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109556316979 is a prime number
BaseRepresentation
bin110011000001000010…
…0001011101100110011
3101110210011112112200121
41212002010023230303
53243332404120404
6122155100031111
710625623220644
oct1460204135463
9343704475617
10109556316979
114250a75952a
1219296232497
13a43c602585
1454342cb6cb
152cb31a5e54
hex198210bb33

109556316979 has 2 divisors, whose sum is σ = 109556316980. Its totient is φ = 109556316978.

The previous prime is 109556316959. The next prime is 109556316983. The reversal of 109556316979 is 979613655901.

It is a strong prime.

It is an emirp because it is prime and its reverse (979613655901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109556316979 - 27 = 109556316851 is a prime.

It is not a weakly prime, because it can be changed into another prime (109556316959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54778158489 + 54778158490.

It is an arithmetic number, because the mean of its divisors is an integer number (54778158490).

Almost surely, 2109556316979 is an apocalyptic number.

109556316979 is a deficient number, since it is larger than the sum of its proper divisors (1).

109556316979 is an equidigital number, since it uses as much as digits as its factorization.

109556316979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13778100, while the sum is 61.

The spelling of 109556316979 in words is "one hundred nine billion, five hundred fifty-six million, three hundred sixteen thousand, nine hundred seventy-nine".