4054386509 has 2 divisors, whose sum is σ = 4054386510. Its totient is φ = 4054386508.

The previous prime is 4054386473. The next prime is 4054386547. The reversal of 4054386509 is 9056834504.

4054386509 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., 2683758025 + 1370628484 = 51805^2 + 37022^2 .

It is a cyclic number.

It is not a de Polignac number, because 4054386509 - 2²⁸ = 3785951053 is a prime.

It is a super-2 number, since 2×4054386509² = 32876099928722414162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4054386509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4054386109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027193254 + 2027193255.

It is an arithmetic number, because the mean of its divisors is an integer number (2027193255).

Almost surely, 2^4054386509 is an apocalyptic number.

It is an amenable number.

4054386509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4054386509 is an equidigital number, since it uses as much as digits as its factorization.

4054386509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 4054386509 is about 63674.0646495887. The cubic root of 4054386509 is about 1594.5631228480.

The spelling of 4054386509 in words is "four billion, fifty-four million, three hundred eighty-six thousand, five hundred nine".