6920105749 has 16 divisors (see below), whose sum is σ = 7364172672. Its totient is φ = 6488209728.

The previous prime is 6920105741. The next prime is 6920105873. The reversal of 6920105749 is 9475010296.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6920105749 - 2³ = 6920105741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920105741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769254 + ... + 1773160.

It is an arithmetic number, because the mean of its divisors is an integer number (460260792).

Almost surely, 2^6920105749 is an apocalyptic number.

It is an amenable number.

6920105749 is a deficient number, since it is larger than the sum of its proper divisors (444066923).

6920105749 is a wasteful number, since it uses less digits than its factorization.

6920105749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 6920105749 is about 83187.1729835796. The cubic root of 6920105749 is about 1905.6255938431.

The spelling of 6920105749 in words is "six billion, nine hundred twenty million, one hundred five thousand, seven hundred forty-nine".