6906674385 has 80 divisors (see below), whose sum is σ = 13357325520. Its totient is φ = 3394068480.

The previous prime is 6906674353. The next prime is 6906674399. The reversal of 6906674385 is 5834766096.

It can be written as a sum of positive squares in 8 ways, for example, as 2170069056 + 4736605329 = 46584^2 + 68823^2 .

It is not a de Polignac number, because 6906674385 - 2⁵ = 6906674353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4637721 + ... + 4639209.

It is an arithmetic number, because the mean of its divisors is an integer number (166966569).

Almost surely, 2^6906674385 is an apocalyptic number.

6906674385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6906674385 is a deficient number, since it is larger than the sum of its proper divisors (6450651135).

6906674385 is a wasteful number, since it uses less digits than its factorization.

6906674385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6906674385 is about 83106.4039951194. The cubic root of 6906674385 is about 1904.3919070962.

The spelling of 6906674385 in words is "six billion, nine hundred six million, six hundred seventy-four thousand, three hundred eighty-five".