612395458249 has 9 divisors (see below), whose sum is σ = 627002869293. Its totient is φ = 598120836012.

The previous prime is 612395458187. The next prime is 612395458253. The reversal of 612395458249 is 942854593216.

It is a happy number.

The square root of 612395458249 is 782557.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 612395458249 - 2²⁹ = 611858587337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612395458193 and 612395458202.

It is not an unprimeable number, because it can be changed into a prime (612395458289) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 33640852 + ... + 33659050.

It is an arithmetic number, because the mean of its divisors is an integer number (69666985477).

Almost surely, 2^612395458249 is an apocalyptic number.

612395458249 is the 782557-th square number.

612395458249 is the 391279-th centered octagonal number.

It is an amenable number.

612395458249 is a deficient number, since it is larger than the sum of its proper divisors (14607411044).

612395458249 is an frugal number, since it uses more digits than its factorization.

612395458249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36484 (or 18242 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 58.

The spelling of 612395458249 in words is "six hundred twelve billion, three hundred ninety-five million, four hundred fifty-eight thousand, two hundred forty-nine".