24681980538893 has 2 divisors, whose sum is σ = 24681980538894. Its totient is φ = 24681980538892.

The previous prime is 24681980538877. The next prime is 24681980538949. The reversal of 24681980538893 is 39883508918642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21065281834249 + 3616698704644 = 4589693^2 + 1901762^2 .

It is a cyclic number.

It is not a de Polignac number, because 24681980538893 - 2⁴ = 24681980538877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24681980538893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24681980531893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12340990269446 + 12340990269447.

It is an arithmetic number, because the mean of its divisors is an integer number (12340990269447).

Almost surely, 2^{24681980538893} is an apocalyptic number.

It is an amenable number.

24681980538893 is a deficient number, since it is larger than the sum of its proper divisors (1).

24681980538893 is an equidigital number, since it uses as much as digits as its factorization.

24681980538893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 716636160, while the sum is 74.

The spelling of 24681980538893 in words is "twenty-four trillion, six hundred eighty-one billion, nine hundred eighty million, five hundred thirty-eight thousand, eight hundred ninety-three".