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BaseRepresentation
bin1011100010100111011110…
…0101110101100001011001
31122221002101220112012202212
42320221313211311201121
53130400231442042031
642553222514204505
72446526445434501
oct270516745654131
948832356465685
1012689339799641
11405257856315a
12150b342283735
137107a445655b
1431c24b1c6a01
1517012b1aa12b
hexb8a77975859

12689339799641 has 2 divisors, whose sum is σ = 12689339799642. Its totient is φ = 12689339799640.

The previous prime is 12689339799583. The next prime is 12689339799707. The reversal of 12689339799641 is 14699793398621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8533286750041 + 4156053049600 = 2921179^2 + 2038640^2 .

It is a cyclic number.

It is not a de Polignac number, because 12689339799641 - 222 = 12689335605337 is a prime.

It is a super-2 number, since 2×126893397996412 (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12689339739641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344669899820 + 6344669899821.

It is an arithmetic number, because the mean of its divisors is an integer number (6344669899821).

Almost surely, 212689339799641 is an apocalyptic number.

It is an amenable number.

12689339799641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12689339799641 is an equidigital number, since it uses as much as digits as its factorization.

12689339799641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952342272, while the sum is 77.

The spelling of 12689339799641 in words is "twelve trillion, six hundred eighty-nine billion, three hundred thirty-nine million, seven hundred ninety-nine thousand, six hundred forty-one".