780383192449 has 9 divisors (see below), whose sum is σ = 907799886657. Its totient is φ = 668894578884.

The previous prime is 780383192423. The next prime is 780383192497. The reversal of 780383192449 is 944291383087.

The square root of 780383192449 is 883393.

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

It is not a de Polignac number, because 780383192449 - 2⁷ = 780383192321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780383192393 and 780383192402.

It is not an unprimeable number, because it can be changed into a prime (780323192449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6120652 + ... + 6246850.

It is an arithmetic number, because the mean of its divisors is an integer number (100866654073).

Almost surely, 2^780383192449 is an apocalyptic number.

780383192449 is the 883393-rd square number.

780383192449 is the 441697-th centered octagonal number.

It is an amenable number.

780383192449 is a deficient number, since it is larger than the sum of its proper divisors (127416694208).

780383192449 is an frugal number, since it uses more digits than its factorization.

780383192449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252412 (or 126206 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 780383192449 in words is "seven hundred eighty billion, three hundred eighty-three million, one hundred ninety-two thousand, four hundred forty-nine".