9649970460 has 144 divisors (see below), whose sum is σ = 31725229536. Its totient is φ = 2360157696.

The previous prime is 9649970419. The next prime is 9649970479. The reversal of 9649970460 is 640799469.

9649970460 is a `hidden beast` number, since 96 + 4 + 9 + 97 + 0 + 460 = 666.

It is a super-2 number, since 2×9649970460² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9649970397 and 9649970406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 354247 + ... + 380513.

It is an arithmetic number, because the mean of its divisors is an integer number (220314094).

Almost surely, 2^9649970460 is an apocalyptic number.

9649970460 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9649970460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15862614768).

9649970460 is an abundant number, since it is smaller than the sum of its proper divisors (22075259076).

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

9649970460 is a wasteful number, since it uses less digits than its factorization.

9649970460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26452 (or 26447 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 9649970460 is about 98234.2631671862. The cubic root of 9649970460 is about 2128.9983652638.

The spelling of 9649970460 in words is "nine billion, six hundred forty-nine million, nine hundred seventy thousand, four hundred sixty".