9640609742 has 4 divisors (see below), whose sum is σ = 14460914616. Its totient is φ = 4820304870.

The previous prime is 9640609723. The next prime is 9640609787. The reversal of 9640609742 is 2479060469.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2410152434 + ... + 2410152437.

It is an arithmetic number, because the mean of its divisors is an integer number (3615228654).

Almost surely, 2^9640609742 is an apocalyptic number.

9640609742 is a deficient number, since it is larger than the sum of its proper divisors (4820304874).

9640609742 is a wasteful number, since it uses less digits than its factorization.

9640609742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820304873.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 9640609742 is about 98186.6067343199. The cubic root of 9640609742 is about 2128.3097482799.

The spelling of 9640609742 in words is "nine billion, six hundred forty million, six hundred nine thousand, seven hundred forty-two".