82855445776470 has 96 divisors (see below), whose sum is σ = 222376223646720. Its totient is φ = 21381771850560.

The previous prime is 82855445776447. The next prime is 82855445776553. The reversal of 82855445776470 is 7467754455828.

82855445776470 is a `hidden beast` number, since 8 + 2 + 8 + 5 + 5 + 4 + 4 + 577 + 6 + 47 + 0 = 666.

It is a super-2 number, since 2×82855445776470² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294112141 + ... + 294393719.

It is an arithmetic number, because the mean of its divisors is an integer number (2316418996320).

Almost surely, 2^{82855445776470} is an apocalyptic number.

82855445776470 is an abundant number, since it is smaller than the sum of its proper divisors (139520777870250).

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

82855445776470 is a wasteful number, since it uses less digits than its factorization.

82855445776470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387090 (or 387087 counting only the distinct ones).

The product of its (nonzero) digits is 2107392000, while the sum is 72.

The spelling of 82855445776470 in words is "eighty-two trillion, eight hundred fifty-five billion, four hundred forty-five million, seven hundred seventy-six thousand, four hundred seventy".