25443360379 has 2 divisors, whose sum is σ = 25443360380. Its totient is φ = 25443360378.

The previous prime is 25443360377. The next prime is 25443360407. The reversal of 25443360379 is 97306334452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25443360379 - 2¹ = 25443360377 is a prime.

Together with 25443360377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25443360377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12721680189 + 12721680190.

It is an arithmetic number, because the mean of its divisors is an integer number (12721680190).

Almost surely, 2^25443360379 is an apocalyptic number.

25443360379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25443360379 is an equidigital number, since it uses as much as digits as its factorization.

25443360379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 25443360379 in words is "twenty-five billion, four hundred forty-three million, three hundred sixty thousand, three hundred seventy-nine".