612654055909 has 32 divisors (see below), whose sum is σ = 780568980480. Its totient is φ = 468117004032.

The previous prime is 612654055889. The next prime is 612654055927. The reversal of 612654055909 is 909550456216.

It is a cyclic number.

It is not a de Polignac number, because 612654055909 - 2⁷ = 612654055781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612654055939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10105842 + ... + 10166284.

It is an arithmetic number, because the mean of its divisors is an integer number (24392780640).

Almost surely, 2^612654055909 is an apocalyptic number.

It is an amenable number.

612654055909 is a deficient number, since it is larger than the sum of its proper divisors (167914924571).

612654055909 is a wasteful number, since it uses less digits than its factorization.

612654055909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64969.

The product of its (nonzero) digits is 2916000, while the sum is 52.

The spelling of 612654055909 in words is "six hundred twelve billion, six hundred fifty-four million, fifty-five thousand, nine hundred nine".