24720451801 has 2 divisors, whose sum is σ = 24720451802. Its totient is φ = 24720451800.

The previous prime is 24720451793. The next prime is 24720451813. The reversal of 24720451801 is 10815402742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13303315600 + 11417136201 = 115340^2 + 106851^2 .

It is a cyclic number.

It is not a de Polignac number, because 24720451801 - 2³ = 24720451793 is a prime.

It is a super-2 number, since 2×24720451801² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24720451841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12360225900 + 12360225901.

It is an arithmetic number, because the mean of its divisors is an integer number (12360225901).

Almost surely, 2^24720451801 is an apocalyptic number.

It is an amenable number.

24720451801 is a deficient number, since it is larger than the sum of its proper divisors (1).

24720451801 is an equidigital number, since it uses as much as digits as its factorization.

24720451801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 24720451801 in words is "twenty-four billion, seven hundred twenty million, four hundred fifty-one thousand, eight hundred one".