7405055869 has 2 divisors, whose sum is σ = 7405055870. Its totient is φ = 7405055868.

The previous prime is 7405055809. The next prime is 7405055909. The reversal of 7405055869 is 9685505047.

7405055869 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6490719225 + 914336644 = 80565^2 + 30238^2 .

It is a cyclic number.

It is not a de Polignac number, because 7405055869 - 2⁷ = 7405055741 is a prime.

It is a super-2 number, since 2×7405055869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7405055809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702527934 + 3702527935.

It is an arithmetic number, because the mean of its divisors is an integer number (3702527935).

Almost surely, 2^7405055869 is an apocalyptic number.

It is an amenable number.

7405055869 is a deficient number, since it is larger than the sum of its proper divisors (1).

7405055869 is an equidigital number, since it uses as much as digits as its factorization.

7405055869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The square root of 7405055869 is about 86052.6342943666. The cubic root of 7405055869 is about 1949.1388587761.

It can be divided in two parts, 7 and 405055869, that added together give a square (405055876 = 20126²).

The spelling of 7405055869 in words is "seven billion, four hundred five million, fifty-five thousand, eight hundred sixty-nine".