6909489616 has 40 divisors (see below), whose sum is σ = 14058278784. Its totient is φ = 3283463040.

The previous prime is 6909489577. The next prime is 6909489619. The reversal of 6909489616 is 6169849096.

It is a super-2 number, since 2×6909489616² = 95482093507223654912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6909489619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2020 + ... + 117571.

Almost surely, 2^6909489616 is an apocalyptic number.

It is an amenable number.

6909489616 is an abundant number, since it is smaller than the sum of its proper divisors (7148789168).

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

6909489616 is a wasteful number, since it uses less digits than its factorization.

6909489616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119779 (or 119773 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 6909489616 is about 83123.3397789093. The cubic root of 6909489616 is about 1904.6506218099.

The spelling of 6909489616 in words is "six billion, nine hundred nine million, four hundred eighty-nine thousand, six hundred sixteen".