641242472277243 has 16 divisors (see below), whose sum is σ = 857757451988736. Its totient is φ = 426111295777440.

The previous prime is 641242472277229. The next prime is 641242472277247. The reversal of 641242472277243 is 342772274242146.

It is not a de Polignac number, because 641242472277243 - 2¹² = 641242472273147 is a prime.

It is a super-2 number, since 2×641242472277243² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641242472277247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36492580 + ... + 51129182.

It is an arithmetic number, because the mean of its divisors is an integer number (53609840749296).

Almost surely, 2^{641242472277243} is an apocalyptic number.

641242472277243 is a deficient number, since it is larger than the sum of its proper divisors (216514979711493).

641242472277243 is a wasteful number, since it uses less digits than its factorization.

641242472277243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14683874.

The product of its digits is 50577408, while the sum is 57.

The spelling of 641242472277243 in words is "six hundred forty-one trillion, two hundred forty-two billion, four hundred seventy-two million, two hundred seventy-seven thousand, two hundred forty-three".