6421013611 has 16 divisors (see below), whose sum is σ = 6869699424. Its totient is φ = 5980340224.

The previous prime is 6421013597. The next prime is 6421013623. The reversal of 6421013611 is 1163101246.

It is a cyclic number.

It is not a de Polignac number, because 6421013611 - 2¹⁵ = 6420980843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6421013111) 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, 2823771 + ... + 2826043.

It is an arithmetic number, because the mean of its divisors is an integer number (429356214).

Almost surely, 2^6421013611 is an apocalyptic number.

6421013611 is a deficient number, since it is larger than the sum of its proper divisors (448685813).

6421013611 is a wasteful number, since it uses less digits than its factorization.

6421013611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 6421013611 is about 80131.2274397441. The cubic root of 6421013611 is about 1858.6653248353.

Adding to 6421013611 its reverse (1163101246), we get a palindrome (7584114857).

The spelling of 6421013611 in words is "six billion, four hundred twenty-one million, thirteen thousand, six hundred eleven".