72800000826 has 32 divisors (see below), whose sum is σ = 166566998400. Its totient is φ = 20779125696.

The previous prime is 72800000797. The next prime is 72800000827. The reversal of 72800000826 is 62800000827.

It is not an unprimeable number, because it can be changed into a prime (72800000827) 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, 827401 + ... + 911148.

It is an arithmetic number, because the mean of its divisors is an integer number (5205218700).

Almost surely, 2^72800000826 is an apocalyptic number.

72800000826 is an abundant number, since it is smaller than the sum of its proper divisors (93766997574).

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

72800000826 is a wasteful number, since it uses less digits than its factorization.

72800000826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739558.

The product of its (nonzero) digits is 10752, while the sum is 33.

Subtracting from 72800000826 its reverse (62800000827), we obtain a palindrome (9999999999).

The spelling of 72800000826 in words is "seventy-two billion, eight hundred million, eight hundred twenty-six", and thus it is an aban number.