9779470272 has 252 divisors, whose sum is σ = 33116193864. Its totient is φ = 2735216640.

The previous prime is 9779470249. The next prime is 9779470301. The reversal of 9779470272 is 2720749779.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1066218 + ... + 1075350.

Almost surely, 2^9779470272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9779470272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16558096932).

9779470272 is an abundant number, since it is smaller than the sum of its proper divisors (23336723592).

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

9779470272 is a wasteful number, since it uses less digits than its factorization.

9779470272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9188 (or 9162 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 54.

The square root of 9779470272 is about 98891.2042195867. The cubic root of 9779470272 is about 2138.4795931818.

The spelling of 9779470272 in words is "nine billion, seven hundred seventy-nine million, four hundred seventy thousand, two hundred seventy-two".