8538540077 has 2 divisors, whose sum is σ = 8538540078. Its totient is φ = 8538540076.

The previous prime is 8538540053. The next prime is 8538540083. The reversal of 8538540077 is 7700458358.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7205632996 + 1332907081 = 84886^2 + 36509^2 .

It is a cyclic number.

It is not a de Polignac number, because 8538540077 - 2¹² = 8538535981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8538540097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269270038 + 4269270039.

It is an arithmetic number, because the mean of its divisors is an integer number (4269270039).

Almost surely, 2^8538540077 is an apocalyptic number.

It is an amenable number.

8538540077 is a deficient number, since it is larger than the sum of its proper divisors (1).

8538540077 is an equidigital number, since it uses as much as digits as its factorization.

8538540077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 940800, while the sum is 47.

The square root of 8538540077 is about 92404.2210994714. The cubic root of 8538540077 is about 2043.9073577936.

The spelling of 8538540077 in words is "eight billion, five hundred thirty-eight million, five hundred forty thousand, seventy-seven".