12847307542497 has 6 divisors (see below), whose sum is σ = 18557222005842. Its totient is φ = 8564871694992.

The previous prime is 12847307542471. The next prime is 12847307542501. The reversal of 12847307542497 is 79424570374821.

It is a happy number.

12847307542497 is a `hidden beast` number, since 1 + 2 + 8 + 4 + 7 + 30 + 75 + 42 + 497 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11030376082401 + 1816931460096 = 3321201^2 + 1347936^2 .

It is not a de Polignac number, because 12847307542497 - 2¹¹ = 12847307540449 is a prime.

It is a super-2 number, since 2×12847307542497² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12847307542417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713739307908 + ... + 713739307925.

It is an arithmetic number, because the mean of its divisors is an integer number (3092870334307).

Almost surely, 2^{12847307542497} is an apocalyptic number.

It is an amenable number.

12847307542497 is a deficient number, since it is larger than the sum of its proper divisors (5709914463345).

12847307542497 is a wasteful number, since it uses less digits than its factorization.

12847307542497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427478615839 (or 1427478615836 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 63.

The spelling of 12847307542497 in words is "twelve trillion, eight hundred forty-seven billion, three hundred seven million, five hundred forty-two thousand, four hundred ninety-seven".