12545436352052 has 6 divisors (see below), whose sum is σ = 21954513616098. Its totient is φ = 6272718176024.

The previous prime is 12545436352013. The next prime is 12545436352117. The reversal of 12545436352052 is 25025363454521.

It can be written as a sum of positive squares in only one way, i.e., 8362773287716 + 4182663064336 = 2891846^2 + 2045156^2 .

It is a super-2 number, since 2×12545436352052² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12545436351988 and 12545436352006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568179544003 + ... + 1568179544010.

It is an arithmetic number, because the mean of its divisors is an integer number (3659085602683).

Almost surely, 2^{12545436352052} is an apocalyptic number.

It is an amenable number.

12545436352052 is a deficient number, since it is larger than the sum of its proper divisors (9409077264046).

12545436352052 is a wasteful number, since it uses less digits than its factorization.

12545436352052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136359088017 (or 3136359088015 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 12545436352052 in words is "twelve trillion, five hundred forty-five billion, four hundred thirty-six million, three hundred fifty-two thousand, fifty-two".