6354555409 has 6 divisors (see below), whose sum is σ = 6750341174. Its totient is φ = 5980757760.

The previous prime is 6354555407. The next prime is 6354555413. The reversal of 6354555409 is 9045554536.

It can be written as a sum of positive squares in 3 ways, for example, as 3923769600 + 2430785809 = 62640^2 + 49303^2 .

It is not a de Polignac number, because 6354555409 - 2¹ = 6354555407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6354555407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10993752 + ... + 10994329.

Almost surely, 2^6354555409 is an apocalyptic number.

It is an amenable number.

6354555409 is a deficient number, since it is larger than the sum of its proper divisors (395785765).

6354555409 is a wasteful number, since it uses less digits than its factorization.

6354555409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21988115 (or 21988098 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The square root of 6354555409 is about 79715.4653063005. The cubic root of 6354555409 is about 1852.2306095171.

The spelling of 6354555409 in words is "six billion, three hundred fifty-four million, five hundred fifty-five thousand, four hundred nine".