643624026654106 has 8 divisors (see below), whose sum is σ = 965461780249920. Its totient is φ = 321803433237468.

The previous prime is 643624026654043. The next prime is 643624026654181. The reversal of 643624026654106 is 601456620426346.

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

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, 4289951026 + ... + 4290101053.

It is an arithmetic number, because the mean of its divisors is an integer number (120682722531240).

Almost surely, 2^{643624026654106} is an apocalyptic number.

643624026654106 is a deficient number, since it is larger than the sum of its proper divisors (321837753595814).

643624026654106 is a wasteful number, since it uses less digits than its factorization.

643624026654106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580089588.

The product of its (nonzero) digits is 29859840, while the sum is 55.

The spelling of 643624026654106 in words is "six hundred forty-three trillion, six hundred twenty-four billion, twenty-six million, six hundred fifty-four thousand, one hundred six".