81474082202 has 8 divisors (see below), whose sum is σ = 124516993716. Its totient is φ = 39968417632.

The previous prime is 81474082199. The next prime is 81474082211. The reversal of 81474082202 is 20228047418.

It can be written as a sum of positive squares in 2 ways, for example, as 78764983801 + 2709098401 = 280651^2 + 52049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384311603 + ... + 384311814.

Almost surely, 2^81474082202 is an apocalyptic number.

81474082202 is a deficient number, since it is larger than the sum of its proper divisors (43042911514).

81474082202 is a wasteful number, since it uses less digits than its factorization.

81474082202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768623472.

The product of its (nonzero) digits is 57344, while the sum is 38.

The spelling of 81474082202 in words is "eighty-one billion, four hundred seventy-four million, eighty-two thousand, two hundred two".