2620123630 has 16 divisors (see below), whose sum is σ = 4750650000. Its totient is φ = 1040398912.

The previous prime is 2620123619. The next prime is 2620123631. The reversal of 2620123630 is 363210262.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2620123595 and 2620123604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620123631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954880 + ... + 957619.

It is an arithmetic number, because the mean of its divisors is an integer number (296915625).

Almost surely, 2^2620123630 is an apocalyptic number.

2620123630 is a deficient number, since it is larger than the sum of its proper divisors (2130526370).

2620123630 is a wasteful number, since it uses less digits than its factorization.

2620123630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912643.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2620123630 is about 51187.1432099898. The cubic root of 2620123630 is about 1378.6073660056.

Adding to 2620123630 its reverse (363210262), we get a palindrome (2983333892).

The spelling of 2620123630 in words is "two billion, six hundred twenty million, one hundred twenty-three thousand, six hundred thirty".