25966786970 has 8 divisors (see below), whose sum is σ = 46740216564. Its totient is φ = 10386714784.

The previous prime is 25966786957. The next prime is 25966786987. The reversal of 25966786970 is 7968766952.

It can be written as a sum of positive squares in 2 ways, for example, as 23171232841 + 2795554129 = 152221^2 + 52873^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25966786897 and 25966786906.

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, 1298339339 + ... + 1298339358.

Almost surely, 2^25966786970 is an apocalyptic number.

25966786970 is a deficient number, since it is larger than the sum of its proper divisors (20773429594).

25966786970 is a wasteful number, since it uses less digits than its factorization.

25966786970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596678704.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 25966786970 in words is "twenty-five billion, nine hundred sixty-six million, seven hundred eighty-six thousand, nine hundred seventy".