3780066787 has 4 divisors (see below), whose sum is σ = 4320076336. Its totient is φ = 3240057240.

The previous prime is 3780066761. The next prime is 3780066803. The reversal of 3780066787 is 7876600873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7876600873 = 229 ⋅34395637.

It is not a de Polignac number, because 3780066787 - 2¹⁵ = 3780034019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3780066757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270004764 + ... + 270004777.

It is an arithmetic number, because the mean of its divisors is an integer number (1080019084).

Almost surely, 2^3780066787 is an apocalyptic number.

3780066787 is a deficient number, since it is larger than the sum of its proper divisors (540009549).

3780066787 is an equidigital number, since it uses as much as digits as its factorization.

3780066787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540009548.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 3780066787 is about 61482.2477386766. The cubic root of 3780066787 is about 1557.7574048691.

The spelling of 3780066787 in words is "three billion, seven hundred eighty million, sixty-six thousand, seven hundred eighty-seven".