6113213405 has 32 divisors (see below), whose sum is σ = 7977693024. Its totient is φ = 4470276096.

The previous prime is 6113213389. The next prime is 6113213429. The reversal of 6113213405 is 5043123116.

It can be written as a sum of positive squares in 16 ways, for example, as 1495059556 + 4618153849 = 38666^2 + 67957^2 .

It is not a de Polignac number, because 6113213405 - 2⁴ = 6113213389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3601517 + ... + 3603213.

It is an arithmetic number, because the mean of its divisors is an integer number (249302907).

Almost surely, 2^6113213405 is an apocalyptic number.

6113213405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6113213405 is a deficient number, since it is larger than the sum of its proper divisors (1864479619).

6113213405 is a wasteful number, since it uses less digits than its factorization.

6113213405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 6113213405 is about 78187.0411577264. The cubic root of 6113213405 is about 1828.4784754167.

The spelling of 6113213405 in words is "six billion, one hundred thirteen million, two hundred thirteen thousand, four hundred five".