20002462621 has 16 divisors (see below), whose sum is σ = 20316588480. Its totient is φ = 19691136640.

The previous prime is 20002462577. The next prime is 20002462643. The reversal of 20002462621 is 12626420002.

It is a cyclic number.

It is not a de Polignac number, because 20002462621 - 2¹⁷ = 20002331549 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 (20002462681) 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 15 ways as a sum of consecutive naturals, for example, 15303450 + ... + 15304756.

It is an arithmetic number, because the mean of its divisors is an integer number (1269786780).

Almost surely, 2^20002462621 is an apocalyptic number.

It is an amenable number.

20002462621 is a deficient number, since it is larger than the sum of its proper divisors (314125859).

20002462621 is a wasteful number, since it uses less digits than its factorization.

20002462621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204.

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

Adding to 20002462621 its reverse (12626420002), we get a palindrome (32628882623).

The spelling of 20002462621 in words is "twenty billion, two million, four hundred sixty-two thousand, six hundred twenty-one".