26678494250 has 16 divisors (see below), whose sum is σ = 49942141704. Its totient is φ = 10671397600.

The previous prime is 26678494237. The next prime is 26678494267. The reversal of 26678494250 is 5249487662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6092270809 + 20586223441 = 78053^2 + 143479^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26678494192 and 26678494201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53356739 + ... + 53357238.

Almost surely, 2^26678494250 is an apocalyptic number.

26678494250 is a deficient number, since it is larger than the sum of its proper divisors (23263647454).

26678494250 is a wasteful number, since it uses less digits than its factorization.

26678494250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106713994 (or 106713984 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 26678494250 in words is "twenty-six billion, six hundred seventy-eight million, four hundred ninety-four thousand, two hundred fifty".