6213400811 has 4 divisors (see below), whose sum is σ = 6219559800. Its totient is φ = 6207241824.

The previous prime is 6213400807. The next prime is 6213400847. The reversal of 6213400811 is 1180043126.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1180043126 = 2 ⋅590021563.

It is a cyclic number.

It is not a de Polignac number, because 6213400811 - 2² = 6213400807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6213408811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077981 + ... + 3079998.

It is an arithmetic number, because the mean of its divisors is an integer number (1554889950).

Almost surely, 2^6213400811 is an apocalyptic number.

6213400811 is a deficient number, since it is larger than the sum of its proper divisors (6158989).

6213400811 is a wasteful number, since it uses less digits than its factorization.

6213400811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6158988.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 6213400811 is about 78825.1280430295. The cubic root of 6213400811 is about 1838.4131729999.

Adding to 6213400811 its reverse (1180043126), we get a palindrome (7393443937).

The spelling of 6213400811 in words is "six billion, two hundred thirteen million, four hundred thousand, eight hundred eleven".