1234065642643 has 8 divisors (see below), whose sum is σ = 1355495443200. Its totient is φ = 1118283739848.

The previous prime is 1234065642631. The next prime is 1234065642653. The reversal of 1234065642643 is 3462465604321.

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 a de Polignac number, because none of the positive numbers 2^k-1234065642643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234065642593 and 1234065642602.

It is not an unprimeable number, because it can be changed into a prime (1234065642653) 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 7 ways as a sum of consecutive naturals, for example, 1411973983 + ... + 1411974856.

It is an arithmetic number, because the mean of its divisors is an integer number (169436930400).

Almost surely, 2^{1234065642643} is an apocalyptic number.

1234065642643 is a deficient number, since it is larger than the sum of its proper divisors (121429800557).

1234065642643 is a wasteful number, since it uses less digits than its factorization.

1234065642643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823948881.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 1234065642643 in words is "one trillion, two hundred thirty-four billion, sixty-five million, six hundred forty-two thousand, six hundred forty-three".