1025726864 has 20 divisors (see below), whose sum is σ = 1988389104. Its totient is φ = 512594208.

The previous prime is 1025726851. The next prime is 1025726881. The reversal of 1025726864 is 4686275201.

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, 16619 + ... + 48245.

Almost surely, 2^1025726864 is an apocalyptic number.

It is an amenable number.

1025726864 is a deficient number, since it is larger than the sum of its proper divisors (962662240).

1025726864 is a wasteful number, since it uses less digits than its factorization.

1025726864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33662 (or 33656 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1025726864 is about 32026.9708839284. The cubic root of 1025726864 is about 1008.5031134614.

The spelling of 1025726864 in words is "one billion, twenty-five million, seven hundred twenty-six thousand, eight hundred sixty-four".