648926108041 has 4 divisors (see below), whose sum is σ = 648941104000. Its totient is φ = 648911112084.

The previous prime is 648926108003. The next prime is 648926108123. The reversal of 648926108041 is 140801629846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 648926108041 - 2¹³ = 648926099849 is a prime.

It is a super-2 number, since 2×648926108041² (a number of 24 digits) contains 22 as substring.

It is the 805560-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (648926103041) by changing a digit.

It is a nontrivial repunit in base 805559.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7432881 + ... + 7519678.

It is an arithmetic number, because the mean of its divisors is an integer number (162235276000).

Almost surely, 2^648926108041 is an apocalyptic number.

It is an amenable number.

648926108041 is a deficient number, since it is larger than the sum of its proper divisors (14995959).

648926108041 is a wasteful number, since it uses less digits than its factorization.

648926108041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14995958.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 648926108041 in words is "six hundred forty-eight billion, nine hundred twenty-six million, one hundred eight thousand, forty-one".