9779472440 has 64 divisors (see below), whose sum is σ = 22210191360. Its totient is φ = 3875195520.

The previous prime is 9779472431. The next prime is 9779472467. The reversal of 9779472440 is 442749779.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399135 + ... + 5400945.

It is an arithmetic number, because the mean of its divisors is an integer number (347034240).

Almost surely, 2^9779472440 is an apocalyptic number.

It is an amenable number.

9779472440 is an abundant number, since it is smaller than the sum of its proper divisors (12430718920).

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

9779472440 is a wasteful number, since it uses less digits than its factorization.

9779472440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 53.

The square root of 9779472440 is about 98891.2151811272. The cubic root of 9779472440 is about 2138.4797512075.

The spelling of 9779472440 in words is "nine billion, seven hundred seventy-nine million, four hundred seventy-two thousand, four hundred forty".