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48968139641 is a prime number
BaseRepresentation
bin101101100110101110…
…101000001101111001
311200101200012020022112
4231212232220031321
51300241320432031
634255021102105
73352322214341
oct554656501571
9150350166275
1048968139641
11198492690a3
1295a73b7935
134805058b75
14252768bd21
151418ebd62b
hexb66ba8379

48968139641 has 2 divisors, whose sum is σ = 48968139642. Its totient is φ = 48968139640.

The previous prime is 48968139637. The next prime is 48968139643. The reversal of 48968139641 is 14693186984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28696360000 + 20271779641 = 169400^2 + 142379^2 .

It is a cyclic number.

It is not a de Polignac number, because 48968139641 - 22 = 48968139637 is a prime.

Together with 48968139643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48968139643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24484069820 + 24484069821.

It is an arithmetic number, because the mean of its divisors is an integer number (24484069821).

Almost surely, 248968139641 is an apocalyptic number.

It is an amenable number.

48968139641 is a deficient number, since it is larger than the sum of its proper divisors (1).

48968139641 is an equidigital number, since it uses as much as digits as its factorization.

48968139641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 59.

The spelling of 48968139641 in words is "forty-eight billion, nine hundred sixty-eight million, one hundred thirty-nine thousand, six hundred forty-one".