2643206370 has 128 divisors (see below), whose sum is σ = 7495151616. Its totient is φ = 583946496.

The previous prime is 2643206317. The next prime is 2643206381. The reversal of 2643206370 is 736023462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1265467 + ... + 1267553.

It is an arithmetic number, because the mean of its divisors is an integer number (58555872).

Almost surely, 2^2643206370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643206370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3747575808).

2643206370 is an abundant number, since it is smaller than the sum of its proper divisors (4851945246).

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

2643206370 is a wasteful number, since it uses less digits than its factorization.

2643206370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 2643206370 is about 51412.1227921976. The cubic root of 2643206370 is about 1382.6439492720.

The spelling of 2643206370 in words is "two billion, six hundred forty-three million, two hundred six thousand, three hundred seventy".