81735379346 has 16 divisors (see below), whose sum is σ = 124537564800. Its totient is φ = 40224780960.

The previous prime is 81735379337. The next prime is 81735379351. The reversal of 81735379346 is 64397353718.

It is a junction number, because it is equal to n+sod(n) for n = 81735379291 and 81735379300.

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 7 ways as a sum of consecutive naturals, for example, 395411 + ... + 565526.

It is an arithmetic number, because the mean of its divisors is an integer number (7783597800).

Almost surely, 2^81735379346 is an apocalyptic number.

81735379346 is a deficient number, since it is larger than the sum of its proper divisors (42802185454).

81735379346 is a wasteful number, since it uses less digits than its factorization.

81735379346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961609.

The product of its digits is 11430720, while the sum is 56.

The spelling of 81735379346 in words is "eighty-one billion, seven hundred thirty-five million, three hundred seventy-nine thousand, three hundred forty-six".