81079810260 has 48 divisors (see below), whose sum is σ = 227040432192. Its totient is φ = 21619667200.

The previous prime is 81079810247. The next prime is 81079810267. The reversal of 81079810260 is 6201897018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81079810267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910315 + ... + 995405.

It is an arithmetic number, because the mean of its divisors is an integer number (4730009004).

Almost surely, 2^81079810260 is an apocalyptic number.

It is an amenable number.

81079810260 is an abundant number, since it is smaller than the sum of its proper divisors (145960621932).

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

81079810260 is a wasteful number, since it uses less digits than its factorization.

81079810260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100984 (or 100982 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 81079810260 in words is "eighty-one billion, seventy-nine million, eight hundred ten thousand, two hundred sixty".