641064711 has 16 divisors (see below), whose sum is σ = 977232384. Its totient is φ = 366183264.

The previous prime is 641064709. The next prime is 641064761. The reversal of 641064711 is 117460146.

It is not a de Polignac number, because 641064711 - 2¹ = 641064709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641064761) 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 15 ways as a sum of consecutive naturals, for example, 80470 + ... + 88076.

It is an arithmetic number, because the mean of its divisors is an integer number (61077024).

Almost surely, 2^641064711 is an apocalyptic number.

641064711 is a deficient number, since it is larger than the sum of its proper divisors (336167673).

641064711 is a wasteful number, since it uses less digits than its factorization.

641064711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11630.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 641064711 is about 25319.2557355069. The cubic root of 641064711 is about 862.2514967342.

The spelling of 641064711 in words is "six hundred forty-one million, sixty-four thousand, seven hundred eleven".