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68392136383 is a prime number
BaseRepresentation
bin111111101100011111…
…010010111010111111
320112112100212111122021
4333230133102322333
52110031341331013
651230252501011
74640551365424
oct775437227277
9215470774567
1068392136383
112700663a36a
121130847a767
1365ac2ba56c
14344b275d4b
151ba43aba8d
hexfec7d2ebf

68392136383 has 2 divisors, whose sum is σ = 68392136384. Its totient is φ = 68392136382.

The previous prime is 68392136363. The next prime is 68392136389. The reversal of 68392136383 is 38363129386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68392136383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68392136383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68392136389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34196068191 + 34196068192.

It is an arithmetic number, because the mean of its divisors is an integer number (34196068192).

Almost surely, 268392136383 is an apocalyptic number.

68392136383 is a deficient number, since it is larger than the sum of its proper divisors (1).

68392136383 is an equidigital number, since it uses as much as digits as its factorization.

68392136383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 52.

The spelling of 68392136383 in words is "sixty-eight billion, three hundred ninety-two million, one hundred thirty-six thousand, three hundred eighty-three".