7847206161 has 16 divisors (see below), whose sum is σ = 10749652800. Its totient is φ = 5088218688.

The previous prime is 7847206139. The next prime is 7847206163. The reversal of 7847206161 is 1616027487.

It is not a de Polignac number, because 7847206161 - 2⁶ = 7847206097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7847206163) 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, 333730 + ... + 356468.

It is an arithmetic number, because the mean of its divisors is an integer number (671853300).

Almost surely, 2^7847206161 is an apocalyptic number.

It is an amenable number.

7847206161 is a deficient number, since it is larger than the sum of its proper divisors (2902446639).

7847206161 is a wasteful number, since it uses less digits than its factorization.

7847206161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25888.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 7847206161 is about 88584.4577846475. The cubic root of 7847206161 is about 1987.1852464973.

The spelling of 7847206161 in words is "seven billion, eight hundred forty-seven million, two hundred six thousand, one hundred sixty-one".