2621205712 has 20 divisors (see below), whose sum is σ = 5104112800. Its totient is φ = 1304015328.

The previous prime is 2621205581. The next prime is 2621205737. The reversal of 2621205712 is 2175021262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408438 + ... + 414805.

It is an arithmetic number, because the mean of its divisors is an integer number (255205640).

Almost surely, 2^2621205712 is an apocalyptic number.

It is an amenable number.

2621205712 is a deficient number, since it is larger than the sum of its proper divisors (2482907088).

2621205712 is a wasteful number, since it uses less digits than its factorization.

2621205712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823450 (or 823444 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2621205712 is about 51197.7119801266. The cubic root of 2621205712 is about 1378.7971230696.

Adding to 2621205712 its reverse (2175021262), we get a palindrome (4796226974).

The spelling of 2621205712 in words is "two billion, six hundred twenty-one million, two hundred five thousand, seven hundred twelve".