8149261705 has 16 divisors (see below), whose sum is σ = 10614288384. Its totient is φ = 5970525120.

The previous prime is 8149261697. The next prime is 8149261717. The reversal of 8149261705 is 5071629418.

It is not a de Polignac number, because 8149261705 - 2³ = 8149261697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485341 + ... + 501850.

It is an arithmetic number, because the mean of its divisors is an integer number (663393024).

Almost surely, 2^8149261705 is an apocalyptic number.

It is an amenable number.

8149261705 is a deficient number, since it is larger than the sum of its proper divisors (2465026679).

8149261705 is a wasteful number, since it uses less digits than its factorization.

8149261705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987336.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 8149261705 is about 90273.2612959120. The cubic root of 8149261705 is about 2012.3619095867.

The spelling of 8149261705 in words is "eight billion, one hundred forty-nine million, two hundred sixty-one thousand, seven hundred five".