24390786073081 has 2 divisors, whose sum is σ = 24390786073082. Its totient is φ = 24390786073080.

The previous prime is 24390786073057. The next prime is 24390786073109. The reversal of 24390786073081 is 18037068709342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16787531313081 + 7603254760000 = 4097259^2 + 2757400^2 .

It is a cyclic number.

It is not a de Polignac number, because 24390786073081 - 2¹⁹ = 24390785548793 is a prime.

It is a super-2 number, since 2×24390786073081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24390786071081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12195393036540 + 12195393036541.

It is an arithmetic number, because the mean of its divisors is an integer number (12195393036541).

Almost surely, 2^{24390786073081} is an apocalyptic number.

It is an amenable number.

24390786073081 is a deficient number, since it is larger than the sum of its proper divisors (1).

24390786073081 is an equidigital number, since it uses as much as digits as its factorization.

24390786073081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 24390786073081 in words is "twenty-four trillion, three hundred ninety billion, seven hundred eighty-six million, seventy-three thousand, eighty-one".