25967769878 has 8 divisors (see below), whose sum is σ = 39056083968. Its totient is φ = 12949075224.

The previous prime is 25967769871. The next prime is 25967769917. The reversal of 25967769878 is 87896776952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25967769871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17403926 + ... + 17405417.

It is an arithmetic number, because the mean of its divisors is an integer number (4882010496).

Almost surely, 2^25967769878 is an apocalyptic number.

25967769878 is a deficient number, since it is larger than the sum of its proper divisors (13088314090).

25967769878 is a wasteful number, since it uses less digits than its factorization.

25967769878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34809718.

The product of its digits is 640120320, while the sum is 74.

The spelling of 25967769878 in words is "twenty-five billion, nine hundred sixty-seven million, seven hundred sixty-nine thousand, eight hundred seventy-eight".