612845129119 has 4 divisors (see below), whose sum is σ = 612847549944. Its totient is φ = 612842708296.

The previous prime is 612845129107. The next prime is 612845129137. The reversal of 612845129119 is 911921548216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612845129119 is a prime.

It is a super-2 number, since 2×612845129119² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612845129159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779557 + ... + 1354030.

It is an arithmetic number, because the mean of its divisors is an integer number (153211887486).

Almost surely, 2^612845129119 is an apocalyptic number.

612845129119 is a deficient number, since it is larger than the sum of its proper divisors (2420825).

612845129119 is a wasteful number, since it uses less digits than its factorization.

612845129119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420824.

The product of its digits is 311040, while the sum is 49.

The spelling of 612845129119 in words is "six hundred twelve billion, eight hundred forty-five million, one hundred twenty-nine thousand, one hundred nineteen".