619452713883249 has 45 divisors (see below), whose sum is σ = 929598433456539. Its totient is φ = 411083447457600.

The previous prime is 619452713883217. The next prime is 619452713883277. The reversal of 619452713883249 is 942388317254916.

The square root of 619452713883249 is 24888807.

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

619452713883249 is a `hidden beast` number, since 6 + 1 + 9 + 4 + 5 + 271 + 38 + 83 + 249 = 666.

It can be written as a sum of positive squares in only one way, i.e., 232598887923249 + 386853825960000 = 15251193^2 + 19668600^2 .

It is not a de Polignac number, because 619452713883249 - 2⁵ = 619452713883217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (619452713883209) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 49951829449 + ... + 49951841849.

Almost surely, 2^{619452713883249} is an apocalyptic number.

619452713883249 is the 24888807-th square number.

619452713883249 is the 12444404-th centered octagonal number.

It is an amenable number.

619452713883249 is a deficient number, since it is larger than the sum of its proper divisors (310145719573290).

619452713883249 is an frugal number, since it uses more digits than its factorization.

619452713883249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25260 (or 12627 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 72.

The spelling of 619452713883249 in words is "six hundred nineteen trillion, four hundred fifty-two billion, seven hundred thirteen million, eight hundred eighty-three thousand, two hundred forty-nine".