7811671796 has 12 divisors (see below), whose sum is σ = 13671806148. Its totient is φ = 3905441472.

The previous prime is 7811671793. The next prime is 7811671811. The reversal of 7811671796 is 6971761187.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5667981796 + 2143690000 = 75286^2 + 46300^2 .

It is a super-2 number, since 2×7811671796² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7811671793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51551 + ... + 135206.

It is an arithmetic number, because the mean of its divisors is an integer number (1139317179).

Almost surely, 2^7811671796 is an apocalyptic number.

It is an amenable number.

7811671796 is a deficient number, since it is larger than the sum of its proper divisors (5860134352).

7811671796 is a wasteful number, since it uses less digits than its factorization.

7811671796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197218 (or 197216 counting only the distinct ones).

The product of its digits is 889056, while the sum is 53.

The square root of 7811671796 is about 88383.6624948299. The cubic root of 7811671796 is about 1984.1811955810.

The spelling of 7811671796 in words is "seven billion, eight hundred eleven million, six hundred seventy-one thousand, seven hundred ninety-six".