24963196021 has 2 divisors, whose sum is σ = 24963196022. Its totient is φ = 24963196020.

The previous prime is 24963195989. The next prime is 24963196031. The reversal of 24963196021 is 12069136942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24289222500 + 673973521 = 155850^2 + 25961^2 .

It is a cyclic number.

It is not a de Polignac number, because 24963196021 - 2⁵ = 24963195989 is a prime.

It is a super-2 number, since 2×24963196021² (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 (24963196031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12481598010 + 12481598011.

It is an arithmetic number, because the mean of its divisors is an integer number (12481598011).

Almost surely, 2^24963196021 is an apocalyptic number.

It is an amenable number.

24963196021 is a deficient number, since it is larger than the sum of its proper divisors (1).

24963196021 is an equidigital number, since it uses as much as digits as its factorization.

24963196021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 24963196021 in words is "twenty-four billion, nine hundred sixty-three million, one hundred ninety-six thousand, twenty-one".