1643842749058 has 8 divisors (see below), whose sum is σ = 2495472125328. Its totient is φ = 812018707284.

The previous prime is 1643842749047. The next prime is 1643842749061. The reversal of 1643842749058 is 8509472483461.

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

It is a junction number, because it is equal to n+sod(n) for n = 1643842748987 and 1643842749005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4951333416 + ... + 4951333747.

It is an arithmetic number, because the mean of its divisors is an integer number (311934015666).

It is a 1-persistent number, because it is pandigital, but 2⋅1643842749058 = 3287685498116 is not.

Almost surely, 2^{1643842749058} is an apocalyptic number.

1643842749058 is a deficient number, since it is larger than the sum of its proper divisors (851629376270).

1643842749058 is an equidigital number, since it uses as much as digits as its factorization.

1643842749058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902667248.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 1643842749058 in words is "one trillion, six hundred forty-three billion, eight hundred forty-two million, seven hundred forty-nine thousand, fifty-eight".