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64322787983 is a prime number
BaseRepresentation
bin111011111001111011…
…111101101010001111
320011000202200012001212
4323321323331222033
52023213113203413
645314404325035
74434656451056
oct737173755217
9204022605055
1064322787983
112530859a713
12105716a377b
1360b11c7abc
143182a2d39d
151a16ed8ca8
hexef9efda8f

64322787983 has 2 divisors, whose sum is σ = 64322787984. Its totient is φ = 64322787982.

The previous prime is 64322787917. The next prime is 64322788003. The reversal of 64322787983 is 38978722346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64322787983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64322787083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32161393991 + 32161393992.

It is an arithmetic number, because the mean of its divisors is an integer number (32161393992).

Almost surely, 264322787983 is an apocalyptic number.

64322787983 is a deficient number, since it is larger than the sum of its proper divisors (1).

64322787983 is an equidigital number, since it uses as much as digits as its factorization.

64322787983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 59.

The spelling of 64322787983 in words is "sixty-four billion, three hundred twenty-two million, seven hundred eighty-seven thousand, nine hundred eighty-three".