1242104794627 has 4 divisors (see below), whose sum is σ = 1242124790896. Its totient is φ = 1242084798360.

The previous prime is 1242104794607. The next prime is 1242104794687. The reversal of 1242104794627 is 7264974012421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242104794627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242104794607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9904668 + ... + 10029289.

It is an arithmetic number, because the mean of its divisors is an integer number (310531197724).

Almost surely, 2^{1242104794627} is an apocalyptic number.

1242104794627 is a deficient number, since it is larger than the sum of its proper divisors (19996269).

1242104794627 is an equidigital number, since it uses as much as digits as its factorization.

1242104794627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19996268.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 1242104794627 in words is "one trillion, two hundred forty-two billion, one hundred four million, seven hundred ninety-four thousand, six hundred twenty-seven".