1421685042247 has 8 divisors (see below), whose sum is σ = 1439844971840. Its totient is φ = 1403529210720.

The previous prime is 1421685042229. The next prime is 1421685042269. The reversal of 1421685042247 is 7422405861241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1421685042247 - 2⁷ = 1421685042119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421685042197 and 1421685042206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421685042847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323208 + ... + 1716925.

It is an arithmetic number, because the mean of its divisors is an integer number (179980621480).

Almost surely, 2^{1421685042247} is an apocalyptic number.

1421685042247 is a deficient number, since it is larger than the sum of its proper divisors (18159929593).

1421685042247 is an equidigital number, since it uses as much as digits as its factorization.

1421685042247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049033.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 1421685042247 in words is "one trillion, four hundred twenty-one billion, six hundred eighty-five million, forty-two thousand, two hundred forty-seven".