25678000834 has 8 divisors (see below), whose sum is σ = 38522139660. Its totient is φ = 12837287616.

The previous prime is 25678000819. The next prime is 25678000849. The reversal of 25678000834 is 43800087652.

It is an interprime number because it is at equal distance from previous prime (25678000819) and next prime (25678000849).

It can be written as a sum of positive squares in 2 ways, for example, as 25455245209 + 222755625 = 159547^2 + 14925^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837579 + ... + 867694.

Almost surely, 2^25678000834 is an apocalyptic number.

25678000834 is a deficient number, since it is larger than the sum of its proper divisors (12844138826).

25678000834 is a wasteful number, since it uses less digits than its factorization.

25678000834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712804.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 25678000834 in words is "twenty-five billion, six hundred seventy-eight million, eight hundred thirty-four", and thus it is an aban number.