9640838141 has 16 divisors (see below), whose sum is σ = 10825170048. Its totient is φ = 8508859200.

The previous prime is 9640838107. The next prime is 9640838153. The reversal of 9640838141 is 1418380469.

It is a cyclic number.

It is not a de Polignac number, because 9640838141 - 2²² = 9636643837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9640838092 and 9640838101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640838101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161936 + ... + 213318.

It is an arithmetic number, because the mean of its divisors is an integer number (676573128).

Almost surely, 2^9640838141 is an apocalyptic number.

It is an amenable number.

9640838141 is a deficient number, since it is larger than the sum of its proper divisors (1184331907).

9640838141 is a wasteful number, since it uses less digits than its factorization.

9640838141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51892.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 9640838141 is about 98187.7698137604. The cubic root of 9640838141 is about 2128.3265556531.

The spelling of 9640838141 in words is "nine billion, six hundred forty million, eight hundred thirty-eight thousand, one hundred forty-one".