8071964121 has 16 divisors (see below), whose sum is σ = 11593190336. Its totient is φ = 4966214976.

The previous prime is 8071964111. The next prime is 8071964207. The reversal of 8071964121 is 1214691708.

It is not a de Polignac number, because 8071964121 - 2¹⁵ = 8071931353 is a prime.

It is a super-2 number, since 2×8071964121² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 8071964121.

It is not an unprimeable number, because it can be changed into a prime (8071964101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166206 + ... + 209208.

It is an arithmetic number, because the mean of its divisors is an integer number (724574396).

Almost surely, 2^8071964121 is an apocalyptic number.

It is an amenable number.

8071964121 is a deficient number, since it is larger than the sum of its proper divisors (3521226215).

8071964121 is a wasteful number, since it uses less digits than its factorization.

8071964121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47832.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 8071964121 is about 89844.1101074522. The cubic root of 8071964121 is about 2005.9791173485.

The spelling of 8071964121 in words is "eight billion, seventy-one million, nine hundred sixty-four thousand, one hundred twenty-one".