9650000640 has 144 divisors (see below), whose sum is σ = 35222600448. Its totient is φ = 2205708288.

The previous prime is 9650000627. The next prime is 9650000663. The reversal of 9650000640 is 460000569.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9650000598 and 9650000607.

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, 152622 + ... + 206381.

It is an arithmetic number, because the mean of its divisors is an integer number (244601392).

Almost surely, 2^9650000640 is an apocalyptic number.

It is an amenable number.

9650000640 is an abundant number, since it is smaller than the sum of its proper divisors (25572599808).

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

9650000640 is a wasteful number, since it uses less digits than its factorization.

9650000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359034 (or 359020 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 9650000640 is about 98234.4167794567. The cubic root of 9650000640 is about 2129.0005847215. Note that the first 3 decimals are identical.

The spelling of 9650000640 in words is "nine billion, six hundred fifty million, six hundred forty", and thus it is an aban number.