12542461563015 has 64 divisors (see below), whose sum is σ = 22317369609600. Its totient is φ = 6683417395200.

The previous prime is 12542461562977. The next prime is 12542461563043. The reversal of 12542461563015 is 51036516424521.

12542461563015 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 2 + 4 + 6 + 1 + 5 + 630 + 1 + 5 = 666.

It is not a de Polignac number, because 12542461563015 - 2⁶ = 12542461562951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1053185881 + ... + 1053197789.

It is an arithmetic number, because the mean of its divisors is an integer number (348708900150).

Almost surely, 2^{12542461563015} is an apocalyptic number.

12542461563015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12542461563015 is a deficient number, since it is larger than the sum of its proper divisors (9774908046585).

12542461563015 is a wasteful number, since it uses less digits than its factorization.

12542461563015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18145 (or 18139 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

Adding to 12542461563015 its reverse (51036516424521), we get a palindrome (63578977987536).

The spelling of 12542461563015 in words is "twelve trillion, five hundred forty-two billion, four hundred sixty-one million, five hundred sixty-three thousand, fifteen".