81414008438 has 16 divisors (see below), whose sum is σ = 139804648704. Its totient is φ = 34832273640.

The previous prime is 81414008413. The next prime is 81414008461. The reversal of 81414008438 is 83480041418.

It is a junction number, because it is equal to n+sod(n) for n = 81414008395 and 81414008404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4945178 + ... + 4961613.

It is an arithmetic number, because the mean of its divisors is an integer number (8737790544).

Almost surely, 2^81414008438 is an apocalyptic number.

81414008438 is a deficient number, since it is larger than the sum of its proper divisors (58390640266).

81414008438 is a wasteful number, since it uses less digits than its factorization.

81414008438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907387.

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 81414008438 in words is "eighty-one billion, four hundred fourteen million, eight thousand, four hundred thirty-eight".