2621212423 has 8 divisors (see below), whose sum is σ = 2693037200. Its totient is φ = 2549439360.

The previous prime is 2621212397. The next prime is 2621212427. The reversal of 2621212423 is 3242121262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2621212423 - 2⁹ = 2621211911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621212427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104128 + ... + 126826.

It is an arithmetic number, because the mean of its divisors is an integer number (336629650).

Almost surely, 2^2621212423 is an apocalyptic number.

2621212423 is a deficient number, since it is larger than the sum of its proper divisors (71824777).

2621212423 is a wasteful number, since it uses less digits than its factorization.

2621212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25857.

The product of its digits is 2304, while the sum is 25.

The square root of 2621212423 is about 51197.7775201229. Note that the first 3 decimals coincide. The cubic root of 2621212423 is about 1378.7982997672.

Adding to 2621212423 its reverse (3242121262), we get a palindrome (5863333685).

The spelling of 2621212423 in words is "two billion, six hundred twenty-one million, two hundred twelve thousand, four hundred twenty-three".