2643156312 has 32 divisors (see below), whose sum is σ = 6633031680. Its totient is φ = 877700000.

The previous prime is 2643156259. The next prime is 2643156319. The reversal of 2643156312 is 2136513462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643156319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203064 + ... + 215687.

It is an arithmetic number, because the mean of its divisors is an integer number (207282240).

Almost surely, 2^2643156312 is an apocalyptic number.

It is an amenable number.

2643156312 is an abundant number, since it is smaller than the sum of its proper divisors (3989875368).

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

2643156312 is a wasteful number, since it uses less digits than its factorization.

2643156312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419023 (or 419019 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2643156312 is about 51411.6359591873. The cubic root of 2643156312 is about 1382.6352208796.

Adding to 2643156312 its reverse (2136513462), we get a palindrome (4779669774).

The spelling of 2643156312 in words is "two billion, six hundred forty-three million, one hundred fifty-six thousand, three hundred twelve".