39075590881 has 2 divisors, whose sum is σ = 39075590882. Its totient is φ = 39075590880.

The previous prime is 39075590849. The next prime is 39075590899. The reversal of 39075590881 is 18809557093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705667856 + 16369923025 = 150684^2 + 127945^2 .

It is a cyclic number.

It is not a de Polignac number, because 39075590881 - 2⁵ = 39075590849 is a prime.

It is a super-2 number, since 2×39075590881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39075590381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19537795440 + 19537795441.

It is an arithmetic number, because the mean of its divisors is an integer number (19537795441).

Almost surely, 2^39075590881 is an apocalyptic number.

It is an amenable number.

39075590881 is a deficient number, since it is larger than the sum of its proper divisors (1).

39075590881 is an equidigital number, since it uses as much as digits as its factorization.

39075590881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 55.

It can be divided in two parts, 390755 and 90881, that added together give a square (481636 = 694²).

The spelling of 39075590881 in words is "thirty-nine billion, seventy-five million, five hundred ninety thousand, eight hundred eighty-one".