4138620877 has 2 divisors, whose sum is σ = 4138620878. Its totient is φ = 4138620876.

The previous prime is 4138620821. The next prime is 4138620917. The reversal of 4138620877 is 7780268314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3965724676 + 172896201 = 62974^2 + 13149^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138620877 - 2¹¹ = 4138618829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138620817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069310438 + 2069310439.

It is an arithmetic number, because the mean of its divisors is an integer number (2069310439).

Almost surely, 2^4138620877 is an apocalyptic number.

It is an amenable number.

4138620877 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138620877 is an equidigital number, since it uses as much as digits as its factorization.

4138620877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 4138620877 is about 64332.1138856792. The cubic root of 4138620877 is about 1605.5304551254.

The spelling of 4138620877 in words is "four billion, one hundred thirty-eight million, six hundred twenty thousand, eight hundred seventy-seven".