9661835740 has 48 divisors (see below), whose sum is σ = 20509632864. Its totient is φ = 3822944000.

The previous prime is 9661835719. The next prime is 9661835761. The reversal of 9661835740 is 475381669.

It is an interprime number because it is at equal distance from previous prime (9661835719) and next prime (9661835761).

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, 3899382 + ... + 3901858.

It is an arithmetic number, because the mean of its divisors is an integer number (427284018).

Almost surely, 2^9661835740 is an apocalyptic number.

It is an amenable number.

9661835740 is an abundant number, since it is smaller than the sum of its proper divisors (10847797124).

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

9661835740 is a wasteful number, since it uses less digits than its factorization.

9661835740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518 (or 4516 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 9661835740 is about 98294.6373918740. The cubic root of 9661835740 is about 2129.8705895353.

The spelling of 9661835740 in words is "nine billion, six hundred sixty-one million, eight hundred thirty-five thousand, seven hundred forty".