8537782241 has 2 divisors, whose sum is σ = 8537782242. Its totient is φ = 8537782240.

The previous prime is 8537782217. The next prime is 8537782283. The reversal of 8537782241 is 1422877358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7177647841 + 1360134400 = 84721^2 + 36880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8537782241 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8537787241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4268891120 + 4268891121.

It is an arithmetic number, because the mean of its divisors is an integer number (4268891121).

Almost surely, 2^8537782241 is an apocalyptic number.

It is an amenable number.

8537782241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8537782241 is an equidigital number, since it uses as much as digits as its factorization.

8537782241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 8537782241 is about 92400.1203516532. The cubic root of 8537782241 is about 2043.8468871749.

The spelling of 8537782241 in words is "eight billion, five hundred thirty-seven million, seven hundred eighty-two thousand, two hundred forty-one".