24642469139 has 2 divisors, whose sum is σ = 24642469140. Its totient is φ = 24642469138.

The previous prime is 24642469109. The next prime is 24642469141. The reversal of 24642469139 is 93196424642.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 24642469139 - 2¹⁶ = 24642403603 is a prime.

Together with 24642469141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (24642469109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12321234569 + 12321234570.

It is an arithmetic number, because the mean of its divisors is an integer number (12321234570).

Almost surely, 2^24642469139 is an apocalyptic number.

24642469139 is a deficient number, since it is larger than the sum of its proper divisors (1).

24642469139 is an equidigital number, since it uses as much as digits as its factorization.

24642469139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 50.

The spelling of 24642469139 in words is "twenty-four billion, six hundred forty-two million, four hundred sixty-nine thousand, one hundred thirty-nine".