3780817803 has 48 divisors (see below), whose sum is σ = 6596322720. Its totient is φ = 2160406080.

The previous prime is 3780817801. The next prime is 3780817823. The reversal of 3780817803 is 3087180873.

It is not a de Polignac number, because 3780817803 - 2¹ = 3780817801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3780817801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89523 + ... + 124803.

It is an arithmetic number, because the mean of its divisors is an integer number (137423390).

Almost surely, 2^3780817803 is an apocalyptic number.

3780817803 is a deficient number, since it is larger than the sum of its proper divisors (2815504917).

3780817803 is an frugal number, since it uses more digits than its factorization.

3780817803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35316 (or 35291 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 3780817803 is about 61488.3550194669. The cubic root of 3780817803 is about 1557.8605620646.

It can be divided in two parts, 37808 and 17803, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 3780817803 in words is "three billion, seven hundred eighty million, eight hundred seventeen thousand, eight hundred three".