3781252806 has 16 divisors (see below), whose sum is σ = 7574274624. Its totient is φ = 1258456104.

The previous prime is 3781252799. The next prime is 3781252819. The reversal of 3781252806 is 6082521873.

It is a congruent number.

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, 486196 + ... + 493911.

It is an arithmetic number, because the mean of its divisors is an integer number (473392164).

Almost surely, 2^3781252806 is an apocalyptic number.

3781252806 is an abundant number, since it is smaller than the sum of its proper divisors (3793021818).

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

3781252806 is a wasteful number, since it uses less digits than its factorization.

3781252806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980755.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 3781252806 is about 61491.8921972645. The cubic root of 3781252806 is about 1557.9203064608.

The spelling of 3781252806 in words is "three billion, seven hundred eighty-one million, two hundred fifty-two thousand, eight hundred six".