81735379300 has 18 divisors (see below), whose sum is σ = 177365773298. Its totient is φ = 32694151680.

The previous prime is 81735379291. The next prime is 81735379321. The reversal of 81735379300 is 397353718.

It can be written as a sum of positive squares in 3 ways, for example, as 64 + 81735379236 = 8^2 + 285894^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 408676797 + ... + 408676996.

Almost surely, 2^81735379300 is an apocalyptic number.

It is an amenable number.

81735379300 is an abundant number, since it is smaller than the sum of its proper divisors (95630393998).

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

81735379300 is a wasteful number, since it uses less digits than its factorization.

81735379300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817353807 (or 817353800 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 81735379300 in words is "eighty-one billion, seven hundred thirty-five million, three hundred seventy-nine thousand, three hundred".