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12955657925477 is a prime number
BaseRepresentation
bin1011110010000111100101…
…1000110111001101100101
31200212112211002001202022002
42330201321120313031211
53144231141412103402
643315425212015045
72505005165236241
oct274417130671545
950775732052262
1012955657925477
114145511166913
121552a87761485
1372c9371747b7
1432b0b2cdb421
151770168a9602
hexbc879637365

12955657925477 has 2 divisors, whose sum is σ = 12955657925478. Its totient is φ = 12955657925476.

The previous prime is 12955657925381. The next prime is 12955657925521. The reversal of 12955657925477 is 77452975655921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12955169250241 + 488675236 = 3599329^2 + 22106^2 .

It is an emirp because it is prime and its reverse (77452975655921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12955657925477 - 210 = 12955657924453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12955657921477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477828962738 + 6477828962739.

It is an arithmetic number, because the mean of its divisors is an integer number (6477828962739).

Almost surely, 212955657925477 is an apocalyptic number.

It is an amenable number.

12955657925477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12955657925477 is an equidigital number, since it uses as much as digits as its factorization.

12955657925477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1666980000, while the sum is 74.

The spelling of 12955657925477 in words is "twelve trillion, nine hundred fifty-five billion, six hundred fifty-seven million, nine hundred twenty-five thousand, four hundred seventy-seven".