81410833804 has 12 divisors (see below), whose sum is σ = 145157053104. Its totient is φ = 39937390064.

The previous prime is 81410833793. The next prime is 81410833811. The reversal of 81410833804 is 40833801418.

It is a super-2 number, since 2×81410833804² (a number of 23 digits) contains 22 as substring.

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, 192006472 + ... + 192006895.

It is an arithmetic number, because the mean of its divisors is an integer number (12096421092).

Almost surely, 2^81410833804 is an apocalyptic number.

It is an amenable number.

81410833804 is a deficient number, since it is larger than the sum of its proper divisors (63746219300).

81410833804 is a wasteful number, since it uses less digits than its factorization.

81410833804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384013424 (or 384013422 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 81410833804 in words is "eighty-one billion, four hundred ten million, eight hundred thirty-three thousand, eight hundred four".