3776820538 has 16 divisors (see below), whose sum is σ = 6000543720. Its totient is φ = 1776715776.

The previous prime is 3776820533. The next prime is 3776820559. The reversal of 3776820538 is 8350286773.

It can be written as a sum of positive squares in 4 ways, for example, as 3544654369 + 232166169 = 59537^2 + 15237^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3776820491 and 3776820500.

It is not an unprimeable number, because it can be changed into a prime (3776820533) 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 7 ways as a sum of consecutive naturals, for example, 90220 + ... + 125272.

Almost surely, 2^3776820538 is an apocalyptic number.

3776820538 is a deficient number, since it is larger than the sum of its proper divisors (2223723182).

3776820538 is a wasteful number, since it uses less digits than its factorization.

3776820538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38241.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 3776820538 is about 61455.8421795682. The cubic root of 3776820538 is about 1557.3113530774.

The spelling of 3776820538 in words is "three billion, seven hundred seventy-six million, eight hundred twenty thousand, five hundred thirty-eight".