7068652378821 has 36 divisors (see below), whose sum is σ = 11496593466540. Its totient is φ = 4179543139200.

The previous prime is 7068652378811. The next prime is 7068652378831. The reversal of 7068652378821 is 1288732568607.

7068652378821 is a `hidden beast` number, since 7 + 0 + 6 + 8 + 6 + 523 + 7 + 88 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (7068652378811) and next prime (7068652378831).

It can be written as a sum of positive squares in 2 ways, for example, as 104801112900 + 6963851265921 = 323730^2 + 2638911^2 .

It is not a de Polignac number, because 7068652378821 - 2²⁷ = 7068518161093 is a prime.

It is a super-2 number, since 2×7068652378821² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7068652378811) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79113366 + ... + 79202663.

It is an arithmetic number, because the mean of its divisors is an integer number (319349818515).

Almost surely, 2^{7068652378821} is an apocalyptic number.

It is an amenable number.

7068652378821 is a deficient number, since it is larger than the sum of its proper divisors (4427941087719).

7068652378821 is a wasteful number, since it uses less digits than its factorization.

7068652378821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158316098 (or 158316084 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 63.

The spelling of 7068652378821 in words is "seven trillion, sixty-eight billion, six hundred fifty-two million, three hundred seventy-eight thousand, eight hundred twenty-one".