6893249805 has 96 divisors (see below), whose sum is σ = 13318905600. Its totient is φ = 3276370944.

The previous prime is 6893249717. The next prime is 6893249809. The reversal of 6893249805 is 5089423986.

6893249805 is a `hidden beast` number, since 68 + 93 + 2 + 498 + 0 + 5 = 666.

It is not a de Polignac number, because 6893249805 - 2⁷ = 6893249677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6893249809) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2237256 + ... + 2240334.

It is an arithmetic number, because the mean of its divisors is an integer number (138738600).

Almost surely, 2^6893249805 is an apocalyptic number.

6893249805 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6893249805 is a deficient number, since it is larger than the sum of its proper divisors (6425655795).

6893249805 is a wasteful number, since it uses less digits than its factorization.

6893249805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3232 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 6893249805 is about 83025.5972878244. The cubic root of 6893249805 is about 1903.1572442141.

The spelling of 6893249805 in words is "six billion, eight hundred ninety-three million, two hundred forty-nine thousand, eight hundred five".