81035870226 has 16 divisors (see below), whose sum is σ = 162074667744. Its totient is φ = 27011468864.

The previous prime is 81035870221. The next prime is 81035870233. The reversal of 81035870226 is 62207853018.

It is a super-3 number, since 3×81035870226³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (81035870221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430186 + ... + 589178.

It is an arithmetic number, because the mean of its divisors is an integer number (10129666734).

Almost surely, 2^81035870226 is an apocalyptic number.

81035870226 is an abundant number, since it is smaller than the sum of its proper divisors (81038797518).

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

81035870226 is a wasteful number, since it uses less digits than its factorization.

81035870226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243945.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 81035870226 in words is "eighty-one billion, thirty-five million, eight hundred seventy thousand, two hundred twenty-six".