82704042720457 has 8 divisors (see below), whose sum is σ = 82857943920416. Its totient is φ = 82550151395712.

The previous prime is 82704042720443. The next prime is 82704042720589. The reversal of 82704042720457 is 75402724040728.

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 82704042720457 - 2⁴³ = 73907949698249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82704042720427) 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, 14403778 + ... + 19310020.

It is an arithmetic number, because the mean of its divisors is an integer number (10357242990052).

Almost surely, 2^{82704042720457} is an apocalyptic number.

It is an amenable number.

82704042720457 is a deficient number, since it is larger than the sum of its proper divisors (153901199959).

82704042720457 is a wasteful number, since it uses less digits than its factorization.

82704042720457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937607.

The product of its (nonzero) digits is 7024640, while the sum is 52.

The spelling of 82704042720457 in words is "eighty-two trillion, seven hundred four billion, forty-two million, seven hundred twenty thousand, four hundred fifty-seven".