8337782661 has 16 divisors (see below), whose sum is σ = 12358402560. Its totient is φ = 4965428160.

The previous prime is 8337782659. The next prime is 8337782669. The reversal of 8337782661 is 1662877338.

It is not a de Polignac number, because 8337782661 - 2¹ = 8337782659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8337782669) 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 15 ways as a sum of consecutive naturals, for example, 3447006 + ... + 3449423.

It is an arithmetic number, because the mean of its divisors is an integer number (772400160).

Almost surely, 2^8337782661 is an apocalyptic number.

It is an amenable number.

8337782661 is a deficient number, since it is larger than the sum of its proper divisors (4020619899).

8337782661 is a wasteful number, since it uses less digits than its factorization.

8337782661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896476.

The product of its digits is 2032128, while the sum is 51.

The square root of 8337782661 is about 91311.4596367838. The cubic root of 8337782661 is about 2027.7614237883.

The spelling of 8337782661 in words is "eight billion, three hundred thirty-seven million, seven hundred eighty-two thousand, six hundred sixty-one".