7567782049 has 3 divisors (see below), whose sum is σ = 7567869043. Its totient is φ = 7567695056.

The previous prime is 7567782041. The next prime is 7567782113. The reversal of 7567782049 is 9402877657.

The square root of 7567782049 is 86993.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9402877657 = 1471 ⋅6392167.

It can be written as a sum of positive squares in only one way, i.e., 6044285025 + 1523497024 = 77745^2 + 39032^2 .

It is not a de Polignac number, because 7567782049 - 2³ = 7567782041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7567782041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 43497 + ... + 130489.

Almost surely, 2^7567782049 is an apocalyptic number.

7567782049 is the 86993-rd square number.

7567782049 is the 43497-th centered octagonal number.

It is an amenable number.

7567782049 is a deficient number, since it is larger than the sum of its proper divisors (86994).

7567782049 is an frugal number, since it uses more digits than its factorization.

7567782049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173986 (or 86993 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 55.

The cubic root of 7567782049 is about 1963.3129837025.

The spelling of 7567782049 in words is "seven billion, five hundred sixty-seven million, seven hundred eighty-two thousand, forty-nine".