12435402556651 has 2 divisors, whose sum is σ = 12435402556652. Its totient is φ = 12435402556650.

The previous prime is 12435402556639. The next prime is 12435402556669. The reversal of 12435402556651 is 15665520453421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12435402556651 - 2²¹ = 12435400459499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12435402556595 and 12435402556604.

It is not a weakly prime, because it can be changed into another prime (12435402556151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6217701278325 + 6217701278326.

It is an arithmetic number, because the mean of its divisors is an integer number (6217701278326).

Almost surely, 2^{12435402556651} is an apocalyptic number.

12435402556651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12435402556651 is an equidigital number, since it uses as much as digits as its factorization.

12435402556651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 12435402556651 in words is "twelve trillion, four hundred thirty-five billion, four hundred two million, five hundred fifty-six thousand, six hundred fifty-one".