2621021128 has 16 divisors (see below), whose sum is σ = 5361179760. Its totient is φ = 1191373200.

The previous prime is 2621021119. The next prime is 2621021153. The reversal of 2621021128 is 8211201262.

2621021128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 14892078 + ... + 14892253.

It is an arithmetic number, because the mean of its divisors is an integer number (335073735).

Almost surely, 2^2621021128 is an apocalyptic number.

It is an amenable number.

2621021128 is an abundant number, since it is smaller than the sum of its proper divisors (2740158632).

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

2621021128 is a wasteful number, since it uses less digits than its factorization.

2621021128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29784348 (or 29784344 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 2621021128 is about 51195.9092897079. The cubic root of 2621021128 is about 1378.7647575744.

The spelling of 2621021128 in words is "two billion, six hundred twenty-one million, twenty-one thousand, one hundred twenty-eight".