811270026 has 64 divisors (see below), whose sum is σ = 2064384000. Its totient is φ = 231339888.

The previous prime is 811270013. The next prime is 811270043. The reversal of 811270026 is 620072118.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224631 + ... + 228213.

It is an arithmetic number, because the mean of its divisors is an integer number (32256000).

Almost surely, 2^811270026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811270026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032192000).

811270026 is an abundant number, since it is smaller than the sum of its proper divisors (1253113974).

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

811270026 is a wasteful number, since it uses less digits than its factorization.

811270026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200 (or 4194 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 811270026 is about 28482.8022848876. The cubic root of 811270026 is about 932.6566907209.

The spelling of 811270026 in words is "eight hundred eleven million, two hundred seventy thousand, twenty-six".