24621863213 has 2 divisors, whose sum is σ = 24621863214. Its totient is φ = 24621863212.

The previous prime is 24621863191. The next prime is 24621863347. The reversal of 24621863213 is 31236812642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13086673609 + 11535189604 = 114397^2 + 107402^2 .

It is a cyclic number.

It is not a de Polignac number, because 24621863213 - 2⁸ = 24621862957 is a prime.

It is a super-2 number, since 2×24621863213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24621863713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12310931606 + 12310931607.

It is an arithmetic number, because the mean of its divisors is an integer number (12310931607).

Almost surely, 2^24621863213 is an apocalyptic number.

It is an amenable number.

24621863213 is a deficient number, since it is larger than the sum of its proper divisors (1).

24621863213 is an equidigital number, since it uses as much as digits as its factorization.

24621863213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The spelling of 24621863213 in words is "twenty-four billion, six hundred twenty-one million, eight hundred sixty-three thousand, two hundred thirteen".