82704042720456 has 16 divisors (see below), whose sum is σ = 206760106801200. Its totient is φ = 27568014240144.

The previous prime is 82704042720443. The next prime is 82704042720589. The reversal of 82704042720456 is 65402724040728.

It is a super-2 number, since 2×82704042720456² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82704042720399 and 82704042720408.

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, 1723000889986 + ... + 1723000890033.

It is an arithmetic number, because the mean of its divisors is an integer number (12922506675075).

Almost surely, 2^{82704042720456} is an apocalyptic number.

It is an amenable number.

82704042720456 is an abundant number, since it is smaller than the sum of its proper divisors (124056064080744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82704042720456 is a wasteful number, since it uses less digits than its factorization.

82704042720456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446001780028 (or 3446001780024 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 51.

The spelling of 82704042720456 in words is "eighty-two trillion, seven hundred four billion, forty-two million, seven hundred twenty thousand, four hundred fifty-six".