1242668719297 has 16 divisors (see below), whose sum is σ = 1312279056000. Its totient is φ = 1174997025664.

The previous prime is 1242668719283. The next prime is 1242668719301. The reversal of 1242668719297 is 7929178662421.

It is not a de Polignac number, because 1242668719297 - 2⁷ = 1242668719169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242668719207) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 930772 + ... + 1830757.

It is an arithmetic number, because the mean of its divisors is an integer number (82017441000).

Almost surely, 2^{1242668719297} is an apocalyptic number.

It is an amenable number.

1242668719297 is a deficient number, since it is larger than the sum of its proper divisors (69610336703).

1242668719297 is a wasteful number, since it uses less digits than its factorization.

1242668719297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761880.

The product of its digits is 36578304, while the sum is 64.

The spelling of 1242668719297 in words is "one trillion, two hundred forty-two billion, six hundred sixty-eight million, seven hundred nineteen thousand, two hundred ninety-seven".