82885660434 has 48 divisors (see below), whose sum is σ = 184056818400. Its totient is φ = 26941341120.

The previous prime is 82885660433. The next prime is 82885660463. The reversal of 82885660434 is 43406658828.

82885660434 is a `hidden beast` number, since 8 + 28 + 8 + 5 + 6 + 604 + 3 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (82885660433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1522309 + ... + 1575815.

It is an arithmetic number, because the mean of its divisors is an integer number (3834517050).

Almost surely, 2^82885660434 is an apocalyptic number.

82885660434 is an abundant number, since it is smaller than the sum of its proper divisors (101171157966).

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

82885660434 is a wasteful number, since it uses less digits than its factorization.

82885660434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55655 (or 55652 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 82885660434 in words is "eighty-two billion, eight hundred eighty-five million, six hundred sixty thousand, four hundred thirty-four".