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64348482493 is a prime number
BaseRepresentation
bin111011111011011101…
…111110101110111101
320011002120000121022101
4323323131332232331
52023241202414433
645321123145101
74435421035141
oct737335765675
9204076017271
1064348482493
112532104a349
121057a215191
1360b6623159
1431861db221
151a193b207d
hexefb77ebbd

64348482493 has 2 divisors, whose sum is σ = 64348482494. Its totient is φ = 64348482492.

The previous prime is 64348482479. The next prime is 64348482511. The reversal of 64348482493 is 39428484346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48981657124 + 15366825369 = 221318^2 + 123963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64348482493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64348482293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32174241246 + 32174241247.

It is an arithmetic number, because the mean of its divisors is an integer number (32174241247).

Almost surely, 264348482493 is an apocalyptic number.

It is an amenable number.

64348482493 is a deficient number, since it is larger than the sum of its proper divisors (1).

64348482493 is an equidigital number, since it uses as much as digits as its factorization.

64348482493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15925248, while the sum is 55.

The spelling of 64348482493 in words is "sixty-four billion, three hundred forty-eight million, four hundred eighty-two thousand, four hundred ninety-three".