6164740686 has 64 divisors (see below), whose sum is σ = 13653541440. Its totient is φ = 1843845120.

The previous prime is 6164740679. The next prime is 6164740691. The reversal of 6164740686 is 6860474616.

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, 443766 + ... + 457446.

It is an arithmetic number, because the mean of its divisors is an integer number (213336585).

Almost surely, 2^6164740686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6164740686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6826770720).

6164740686 is an abundant number, since it is smaller than the sum of its proper divisors (7488800754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6164740686 is a wasteful number, since it uses less digits than its factorization.

6164740686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 6164740686 is about 78515.8626393419. The cubic root of 6164740686 is about 1833.6014246037.

The spelling of 6164740686 in words is "six billion, one hundred sixty-four million, seven hundred forty thousand, six hundred eighty-six".