9813542690 has 32 divisors (see below), whose sum is σ = 20221536384. Its totient is φ = 3359030400.

The previous prime is 9813542663. The next prime is 9813542737. The reversal of 9813542690 is 962453189.

It is a super-2 number, since 2×9813542690² (a number of 21 digits) contains 22 as substring.

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, 74564 + ... + 158703.

It is an arithmetic number, because the mean of its divisors is an integer number (631923012).

Almost surely, 2^9813542690 is an apocalyptic number.

9813542690 is an abundant number, since it is smaller than the sum of its proper divisors (10407993694).

9813542690 is a wasteful number, since it uses less digits than its factorization.

9813542690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233882.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 9813542690 is about 99063.3266653205. The cubic root of 9813542690 is about 2140.9602563021.

The spelling of 9813542690 in words is "nine billion, eight hundred thirteen million, five hundred forty-two thousand, six hundred ninety".