9731769640 has 32 divisors (see below), whose sum is σ = 21907680480. Its totient is φ = 3890716992.

The previous prime is 9731769617. The next prime is 9731769647. The reversal of 9731769640 is 469671379.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9731769647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18259 + ... + 140701.

It is an arithmetic number, because the mean of its divisors is an integer number (684615015).

Almost surely, 2^9731769640 is an apocalyptic number.

It is an amenable number.

9731769640 is an abundant number, since it is smaller than the sum of its proper divisors (12175910840).

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

9731769640 is a wasteful number, since it uses less digits than its factorization.

9731769640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124441 (or 124437 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 9731769640 is about 98649.7320827583. The cubic root of 9731769640 is about 2134.9970211316.

The spelling of 9731769640 in words is "nine billion, seven hundred thirty-one million, seven hundred sixty-nine thousand, six hundred forty".