6140643211 has 2 divisors, whose sum is σ = 6140643212. Its totient is φ = 6140643210.

The previous prime is 6140643191. The next prime is 6140643221. The reversal of 6140643211 is 1123460416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6140643211 - 2¹³ = 6140635019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6140643211.

It is not a weakly prime, because it can be changed into another prime (6140643221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070321605 + 3070321606.

It is an arithmetic number, because the mean of its divisors is an integer number (3070321606).

Almost surely, 2^6140643211 is an apocalyptic number.

6140643211 is a deficient number, since it is larger than the sum of its proper divisors (1).

6140643211 is an equidigital number, since it uses as much as digits as its factorization.

6140643211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6140643211 is about 78362.2562908956. The cubic root of 6140643211 is about 1831.2091714023.

The spelling of 6140643211 in words is "six billion, one hundred forty million, six hundred forty-three thousand, two hundred eleven".