81696382703 has 8 divisors (see below), whose sum is σ = 87983564928. Its totient is φ = 75409606944.

The previous prime is 81696382619. The next prime is 81696382709. The reversal of 81696382703 is 30728369618.

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

It is a cyclic number.

It is not a de Polignac number, because 81696382703 - 2⁸ = 81696382447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81696382709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412025 + ... + 577197.

It is an arithmetic number, because the mean of its divisors is an integer number (10997945616).

Almost surely, 2^81696382703 is an apocalyptic number.

81696382703 is a deficient number, since it is larger than the sum of its proper divisors (6287182225).

81696382703 is a wasteful number, since it uses less digits than its factorization.

81696382703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203233.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 81696382703 in words is "eighty-one billion, six hundred ninety-six million, three hundred eighty-two thousand, seven hundred three".