905081140069 has 2 divisors, whose sum is σ = 905081140070. Its totient is φ = 905081140068.

The previous prime is 905081140057. The next prime is 905081140109. The reversal of 905081140069 is 960041180509.

905081140069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 897307191169 + 7773948900 = 947263^2 + 88170^2 .

It is a cyclic number.

It is not a de Polignac number, because 905081140069 - 2¹⁹ = 905080615781 is a prime.

It is a super-2 number, since 2×905081140069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (905081140009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452540570034 + 452540570035.

It is an arithmetic number, because the mean of its divisors is an integer number (452540570035).

Almost surely, 2^905081140069 is an apocalyptic number.

It is an amenable number.

905081140069 is a deficient number, since it is larger than the sum of its proper divisors (1).

905081140069 is an equidigital number, since it uses as much as digits as its factorization.

905081140069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 905081140069 in words is "nine hundred five billion, eighty-one million, one hundred forty thousand, sixty-nine".