2621005026 has 48 divisors (see below), whose sum is σ = 5414840544. Its totient is φ = 845589888.

The previous prime is 2621005021. The next prime is 2621005033. The reversal of 2621005026 is 6205001262.

2621005026 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2621004987 and 2621005005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621005021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1398426 + ... + 1400298.

It is an arithmetic number, because the mean of its divisors is an integer number (112809178).

Almost surely, 2^2621005026 is an apocalyptic number.

2621005026 is an abundant number, since it is smaller than the sum of its proper divisors (2793835518).

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

2621005026 is a wasteful number, since it uses less digits than its factorization.

2621005026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2621005026 is about 51195.7520308082. The cubic root of 2621005026 is about 1378.7619341308.

Adding to 2621005026 its reverse (6205001262), we get a palindrome (8826006288).

The spelling of 2621005026 in words is "two billion, six hundred twenty-one million, five thousand, twenty-six".