6906142693 has 2 divisors, whose sum is σ = 6906142694. Its totient is φ = 6906142692.

The previous prime is 6906142681. The next prime is 6906142703. The reversal of 6906142693 is 3962416096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6587270244 + 318872449 = 81162^2 + 17857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6906142693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6906142613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453071346 + 3453071347.

It is an arithmetic number, because the mean of its divisors is an integer number (3453071347).

Almost surely, 2^6906142693 is an apocalyptic number.

It is an amenable number.

6906142693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6906142693 is an equidigital number, since it uses as much as digits as its factorization.

6906142693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 6906142693 is about 83103.2050705627. The cubic root of 6906142693 is about 1904.3430376563.

The spelling of 6906142693 in words is "six billion, nine hundred six million, one hundred forty-two thousand, six hundred ninety-three".