641050253777 has 8 divisors (see below), whose sum is σ = 643160145600. Its totient is φ = 638942163984.

The previous prime is 641050253773. The next prime is 641050253783. The reversal of 641050253777 is 777352050146.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 641050253777 - 2² = 641050253773 is a prime.

It is a super-2 number, since 2×641050253777² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641050253773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 263999 + ... + 1162667.

It is an arithmetic number, because the mean of its divisors is an integer number (80395018200).

Almost surely, 2^641050253777 is an apocalyptic number.

It is an amenable number.

641050253777 is a deficient number, since it is larger than the sum of its proper divisors (2109891823).

641050253777 is a wasteful number, since it uses less digits than its factorization.

641050253777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901015.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 641050253777 in words is "six hundred forty-one billion, fifty million, two hundred fifty-three thousand, seven hundred seventy-seven".