6938540629066 has 8 divisors (see below), whose sum is σ = 10408126842180. Its totient is φ = 3469165015008.

The previous prime is 6938540629051. The next prime is 6938540629093. The reversal of 6938540629066 is 6609260458396.

It can be written as a sum of positive squares in 2 ways, for example, as 6915474613441 + 23066015625 = 2629729^2 + 151875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6938540629066² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6938540628989 and 6938540629007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52567371 + ... + 52699198.

Almost surely, 2^{6938540629066} is an apocalyptic number.

6938540629066 is a deficient number, since it is larger than the sum of its proper divisors (3469586213114).

6938540629066 is a wasteful number, since it uses less digits than its factorization.

6938540629066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105299528.

The product of its (nonzero) digits is 100776960, while the sum is 64.

The spelling of 6938540629066 in words is "six trillion, nine hundred thirty-eight billion, five hundred forty million, six hundred twenty-nine thousand, sixty-six".