641237262706 has 8 divisors (see below), whose sum is σ = 962690117724. Its totient is φ = 320340556800.

The previous prime is 641237262691. The next prime is 641237262709. The reversal of 641237262706 is 607262732146.

It can be written as a sum of positive squares in 2 ways, for example, as 543108567681 + 98128695025 = 736959^2 + 313255^2 .

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

It is a super-2 number, since 2×641237262706² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641237262709) 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 3 ways as a sum of consecutive naturals, for example, 139034395 + ... + 139039006.

Almost surely, 2^641237262706 is an apocalyptic number.

641237262706 is a deficient number, since it is larger than the sum of its proper divisors (321452855018).

641237262706 is a wasteful number, since it uses less digits than its factorization.

641237262706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278074556.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 641237262706 in words is "six hundred forty-one billion, two hundred thirty-seven million, two hundred sixty-two thousand, seven hundred six".