641302441263 has 16 divisors (see below), whose sum is σ = 1036448390400. Its totient is φ = 388668146040.

The previous prime is 641302441243. The next prime is 641302441327. The reversal of 641302441263 is 362144203146.

641302441263 is a `hidden beast` number, since 64 + 130 + 2 + 441 + 26 + 3 = 666.

641302441263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641302441263 - 2⁵ = 641302441231 is a prime.

It is a super-2 number, since 2×641302441263² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641302441243) 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, 1079633443 + ... + 1079634036.

It is an arithmetic number, because the mean of its divisors is an integer number (64778024400).

Almost surely, 2^641302441263 is an apocalyptic number.

641302441263 is a deficient number, since it is larger than the sum of its proper divisors (395145949137).

641302441263 is a wasteful number, since it uses less digits than its factorization.

641302441263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159267499 (or 2159267493 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 641302441263 in words is "six hundred forty-one billion, three hundred two million, four hundred forty-one thousand, two hundred sixty-three".