3250681686 has 32 divisors (see below), whose sum is σ = 8255700480. Its totient is φ = 928766088.

The previous prime is 3250681631. The next prime is 3250681691. The reversal of 3250681686 is 6861860523.

3250681686 is a `hidden beast` number, since 3 + 2 + 506 + 81 + 68 + 6 = 666.

3250681686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4299466 + ... + 4300221.

It is an arithmetic number, because the mean of its divisors is an integer number (257990640).

Almost surely, 2^3250681686 is an apocalyptic number.

3250681686 is an abundant number, since it is smaller than the sum of its proper divisors (5005018794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3250681686 is a wasteful number, since it uses less digits than its factorization.

3250681686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599705 (or 8599699 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 3250681686 is about 57014.7497232076. The cubic root of 3250681686 is about 1481.3515906609.

The spelling of 3250681686 in words is "three billion, two hundred fifty million, six hundred eighty-one thousand, six hundred eighty-six".