25190468678 has 4 divisors (see below), whose sum is σ = 37785703020. Its totient is φ = 12595234338.

The previous prime is 25190468663. The next prime is 25190468707. The reversal of 25190468678 is 87686409152.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6297617168 + ... + 6297617171.

It is an arithmetic number, because the mean of its divisors is an integer number (9446425755).

Almost surely, 2^25190468678 is an apocalyptic number.

25190468678 is a deficient number, since it is larger than the sum of its proper divisors (12595234342).

25190468678 is a wasteful number, since it uses less digits than its factorization.

25190468678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595234341.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 25190468678 in words is "twenty-five billion, one hundred ninety million, four hundred sixty-eight thousand, six hundred seventy-eight".