9853218402 has 32 divisors (see below), whose sum is σ = 20298347520. Its totient is φ = 3186766800.

The previous prime is 9853218383. The next prime is 9853218409. The reversal of 9853218402 is 2048123589.

It is a super-2 number, since 2×9853218402² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9853218409) 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, 87502 + ... + 165417.

It is an arithmetic number, because the mean of its divisors is an integer number (634323360).

Almost surely, 2^9853218402 is an apocalyptic number.

9853218402 is an abundant number, since it is smaller than the sum of its proper divisors (10445129118).

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

9853218402 is a wasteful number, since it uses less digits than its factorization.

9853218402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253118.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 9853218402 is about 99263.3789571965. The cubic root of 9853218402 is about 2143.8416453700.

The spelling of 9853218402 in words is "nine billion, eight hundred fifty-three million, two hundred eighteen thousand, four hundred two".