6909749676 has 18 divisors (see below), whose sum is σ = 17466311772. Its totient is φ = 2303249880.

The previous prime is 6909749669. The next prime is 6909749683. The reversal of 6909749676 is 6769479096.

It is an interprime number because it is at equal distance from previous prime (6909749669) and next prime (6909749683).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95968710 + ... + 95968781.

It is an arithmetic number, because the mean of its divisors is an integer number (970350654).

Almost surely, 2^6909749676 is an apocalyptic number.

It is an amenable number.

6909749676 is an abundant number, since it is smaller than the sum of its proper divisors (10556562096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6909749676 is a wasteful number, since it uses less digits than its factorization.

6909749676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191937501 (or 191937496 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The square root of 6909749676 is about 83124.9040661101. The cubic root of 6909749676 is about 1904.6745173146.

The spelling of 6909749676 in words is "six billion, nine hundred nine million, seven hundred forty-nine thousand, six hundred seventy-six".