1242656336715 has 8 divisors (see below), whose sum is σ = 1988250138768. Its totient is φ = 662750046240.

The previous prime is 1242656336687. The next prime is 1242656336771. The reversal of 1242656336715 is 5176336562421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1242656336715 - 2⁹ = 1242656336203 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41421877876 + ... + 41421877905.

It is an arithmetic number, because the mean of its divisors is an integer number (248531267346).

Almost surely, 2^{1242656336715} is an apocalyptic number.

1242656336715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242656336715 is a deficient number, since it is larger than the sum of its proper divisors (745593802053).

1242656336715 is an equidigital number, since it uses as much as digits as its factorization.

1242656336715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82843755789.

The product of its digits is 5443200, while the sum is 51.

The spelling of 1242656336715 in words is "one trillion, two hundred forty-two billion, six hundred fifty-six million, three hundred thirty-six thousand, seven hundred fifteen".