12637502651242 has 32 divisors (see below), whose sum is σ = 22179701123712. Its totient is φ = 5287351555584.

The previous prime is 12637502651237. The next prime is 12637502651243. The reversal of 12637502651242 is 24215620573621.

It is a junction number, because it is equal to n+sod(n) for n = 12637502651192 and 12637502651201.

It is not an unprimeable number, because it can be changed into a prime (12637502651243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4335183 + ... + 6638434.

It is an arithmetic number, because the mean of its divisors is an integer number (693115660116).

Almost surely, 2^{12637502651242} is an apocalyptic number.

12637502651242 is a deficient number, since it is larger than the sum of its proper divisors (9542198472470).

12637502651242 is a wasteful number, since it uses less digits than its factorization.

12637502651242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10975582.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 12637502651242 in words is "twelve trillion, six hundred thirty-seven billion, five hundred two million, six hundred fifty-one thousand, two hundred forty-two".