3777628385 has 8 divisors (see below), whose sum is σ = 4587770880. Its totient is φ = 2985691504.

The previous prime is 3777628373. The next prime is 3777628391. The reversal of 3777628385 is 5838267773.

3777628385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3777628385 - 2⁶ = 3777628321 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3777628385.

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, 4550945 + ... + 4551774.

It is an arithmetic number, because the mean of its divisors is an integer number (573471360).

Almost surely, 2^3777628385 is an apocalyptic number.

It is an amenable number.

3777628385 is a deficient number, since it is larger than the sum of its proper divisors (810142495).

3777628385 is an equidigital number, since it uses as much as digits as its factorization.

3777628385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102807.

The product of its digits is 11854080, while the sum is 56.

The square root of 3777628385 is about 61462.4144091330. The cubic root of 3777628385 is about 1557.4223794115.

The spelling of 3777628385 in words is "three billion, seven hundred seventy-seven million, six hundred twenty-eight thousand, three hundred eighty-five".