3865494766 has 8 divisors (see below), whose sum is σ = 6626562480. Its totient is φ = 1656640608.

The previous prime is 3865494757. The next prime is 3865494781. The reversal of 3865494766 is 6674945683.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3865494766.

It is a congruent number.

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, 138053371 + ... + 138053398.

It is an arithmetic number, because the mean of its divisors is an integer number (828320310).

Almost surely, 2^3865494766 is an apocalyptic number.

3865494766 is a deficient number, since it is larger than the sum of its proper divisors (2761067714).

3865494766 is a wasteful number, since it uses less digits than its factorization.

3865494766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276106778.

The product of its digits is 26127360, while the sum is 58.

The square root of 3865494766 is about 62173.1032360457. The cubic root of 3865494766 is about 1569.4049925908.

The spelling of 3865494766 in words is "three billion, eight hundred sixty-five million, four hundred ninety-four thousand, seven hundred sixty-six".