6940886653 has 2 divisors, whose sum is σ = 6940886654. Its totient is φ = 6940886652.

The previous prime is 6940886621. The next prime is 6940886681. The reversal of 6940886653 is 3566880496.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6599450169 + 341436484 = 81237^2 + 18478^2 .

It is a cyclic number.

It is not a de Polignac number, because 6940886653 - 2⁵ = 6940886621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6940886594 and 6940886603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6940881653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470443326 + 3470443327.

It is an arithmetic number, because the mean of its divisors is an integer number (3470443327).

Almost surely, 2^6940886653 is an apocalyptic number.

It is an amenable number.

6940886653 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940886653 is an equidigital number, since it uses as much as digits as its factorization.

6940886653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The square root of 6940886653 is about 83311.9838498640. The cubic root of 6940886653 is about 1907.5312029030.

The spelling of 6940886653 in words is "six billion, nine hundred forty million, eight hundred eighty-six thousand, six hundred fifty-three".