6885147029 has 2 divisors, whose sum is σ = 6885147030. Its totient is φ = 6885147028.

The previous prime is 6885147011. The next prime is 6885147107. The reversal of 6885147029 is 9207415886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3827278225 + 3057868804 = 61865^2 + 55298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6885147029 is a prime.

It is a super-2 number, since 2×6885147029² = 94810499221895053682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6885147329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442573514 + 3442573515.

It is an arithmetic number, because the mean of its divisors is an integer number (3442573515).

Almost surely, 2^6885147029 is an apocalyptic number.

It is an amenable number.

6885147029 is a deficient number, since it is larger than the sum of its proper divisors (1).

6885147029 is an equidigital number, since it uses as much as digits as its factorization.

6885147029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 6885147029 is about 82976.7860850250. The cubic root of 6885147029 is about 1902.4112534040.

The spelling of 6885147029 in words is "six billion, eight hundred eighty-five million, one hundred forty-seven thousand, twenty-nine".