643112424211346 has 8 divisors (see below), whose sum is σ = 964676203499520. Its totient is φ = 321553689711508.

The previous prime is 643112424211343. The next prime is 643112424211381.

643112424211346 is nontrivially palindromic in base 10.

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 = 643112424211297 and 643112424211306.

It is not an unprimeable number, because it can be changed into a prime (643112424211343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260878366 + ... + 1261388313.

It is an arithmetic number, because the mean of its divisors is an integer number (120584525437440).

Almost surely, 2^{643112424211346} is an apocalyptic number.

643112424211346 is a deficient number, since it is larger than the sum of its proper divisors (321563779288174).

643112424211346 is a wasteful number, since it uses less digits than its factorization.

643112424211346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522394168.

The product of its digits is 663552, while the sum is 44.

The spelling of 643112424211346 in words is "six hundred forty-three trillion, one hundred twelve billion, four hundred twenty-four million, two hundred eleven thousand, three hundred forty-six".