9770134920 has 256 divisors, whose sum is σ = 36915056640. Its totient is φ = 2013355008.

The previous prime is 9770134919. The next prime is 9770134921. The reversal of 9770134920 is 294310779.

It is an interprime number because it is at equal distance from previous prime (9770134919) and next prime (9770134921).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (9770134921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 459157 + ... + 479963.

It is an arithmetic number, because the mean of its divisors is an integer number (144199440).

Almost surely, 2^9770134920 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 9770134920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18457528320).

9770134920 is an abundant number, since it is smaller than the sum of its proper divisors (27144921720).

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

9770134920 is a wasteful number, since it uses less digits than its factorization.

9770134920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20884 (or 20880 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 9770134920 is about 98843.9928371977. The cubic root of 9770134920 is about 2137.7989218418.

The spelling of 9770134920 in words is "nine billion, seven hundred seventy million, one hundred thirty-four thousand, nine hundred twenty".