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68036779399 is a prime number
BaseRepresentation
bin111111010111010011…
…101101110110000111
320111121121012111111111
4333113103231312013
52103314403420044
651131120145451
74626005040301
oct772723556607
9214547174444
1068036779399
1126943a96406
1211229468287
1365537a9c64
143415db2971
151b830b5b34
hexfd74edd87

68036779399 has 2 divisors, whose sum is σ = 68036779400. Its totient is φ = 68036779398.

The previous prime is 68036779367. The next prime is 68036779423. The reversal of 68036779399 is 99397763086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68036779399 - 25 = 68036779367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68036779319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34018389699 + 34018389700.

It is an arithmetic number, because the mean of its divisors is an integer number (34018389700).

Almost surely, 268036779399 is an apocalyptic number.

68036779399 is a deficient number, since it is larger than the sum of its proper divisors (1).

68036779399 is an equidigital number, since it uses as much as digits as its factorization.

68036779399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 68036779399 in words is "sixty-eight billion, thirty-six million, seven hundred seventy-nine thousand, three hundred ninety-nine".