641717124123 has 8 divisors (see below), whose sum is σ = 863929850368. Its totient is φ = 423657906984.

The previous prime is 641717124119. The next prime is 641717124149. The reversal of 641717124123 is 321421717146.

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

It is not a de Polignac number, because 641717124123 - 2² = 641717124119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641717124163) 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, 1038376915 + ... + 1038377532.

It is an arithmetic number, because the mean of its divisors is an integer number (107991231296).

Almost surely, 2^641717124123 is an apocalyptic number.

641717124123 is a deficient number, since it is larger than the sum of its proper divisors (222212726245).

641717124123 is a wasteful number, since it uses less digits than its factorization.

641717124123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076754553.

The product of its digits is 56448, while the sum is 39.

The spelling of 641717124123 in words is "six hundred forty-one billion, seven hundred seventeen million, one hundred twenty-four thousand, one hundred twenty-three".