3780638693 has 8 divisors (see below), whose sum is σ = 4082803200. Its totient is φ = 3480095088.

The previous prime is 3780638689. The next prime is 3780638713. The reversal of 3780638693 is 3968360873.

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 3780638693 - 2² = 3780638689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780638093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400373 + ... + 409706.

It is an arithmetic number, because the mean of its divisors is an integer number (510350400).

Almost surely, 2^3780638693 is an apocalyptic number.

It is an amenable number.

3780638693 is a deficient number, since it is larger than the sum of its proper divisors (302164507).

3780638693 is a wasteful number, since it uses less digits than its factorization.

3780638693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810451.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 3780638693 is about 61486.8985475768. The cubic root of 3780638693 is about 1557.8359613190.

The spelling of 3780638693 in words is "three billion, seven hundred eighty million, six hundred thirty-eight thousand, six hundred ninety-three".