641193711 has 16 divisors (see below), whose sum is σ = 877685760. Its totient is φ = 416127680.

The previous prime is 641193697. The next prime is 641193713. The reversal of 641193711 is 117391146.

It is a cyclic number.

It is not a de Polignac number, because 641193711 - 2⁷ = 641193583 is a prime.

It is a super-2 number, since 2×641193711² = 822258750051903042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641193713) 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, 53476 + ... + 64358.

It is an arithmetic number, because the mean of its divisors is an integer number (54855360).

Almost surely, 2^641193711 is an apocalyptic number.

641193711 is a deficient number, since it is larger than the sum of its proper divisors (236492049).

641193711 is a wasteful number, since it uses less digits than its factorization.

641193711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11406.

The product of its digits is 4536, while the sum is 33.

The square root of 641193711 is about 25321.8030756106. The cubic root of 641193711 is about 862.3093291605.

The spelling of 641193711 in words is "six hundred forty-one million, one hundred ninety-three thousand, seven hundred eleven".