25761408067 has 4 divisors (see below), whose sum is σ = 26087501920. Its totient is φ = 25435314216.

The previous prime is 25761408019. The next prime is 25761408089. The reversal of 25761408067 is 76080416752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25761408067 - 2²³ = 25753019459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25761408017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163046808 + ... + 163046965.

It is an arithmetic number, because the mean of its divisors is an integer number (6521875480).

Almost surely, 2^25761408067 is an apocalyptic number.

25761408067 is a deficient number, since it is larger than the sum of its proper divisors (326093853).

25761408067 is an equidigital number, since it uses as much as digits as its factorization.

25761408067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326093852.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 25761408067 in words is "twenty-five billion, seven hundred sixty-one million, four hundred eight thousand, sixty-seven".