9609769980 has 72 divisors (see below), whose sum is σ = 30089963904. Its totient is φ = 2479939200.

The previous prime is 9609769931. The next prime is 9609769987. The reversal of 9609769980 is 899679069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9609769987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 855511 + ... + 866670.

Almost surely, 2^9609769980 is an apocalyptic number.

9609769980 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9609769980 is an abundant number, since it is smaller than the sum of its proper divisors (20480193924).

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

9609769980 is a wasteful number, since it uses less digits than its factorization.

9609769980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722227 (or 1722222 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The square root of 9609769980 is about 98029.4342531874. The cubic root of 9609769980 is about 2126.0378767655.

The spelling of 9609769980 in words is "nine billion, six hundred nine million, seven hundred sixty-nine thousand, nine hundred eighty".