85406841634 has 8 divisors (see below), whose sum is σ = 128344469328. Its totient is φ = 42625351860.

The previous prime is 85406841607. The next prime is 85406841647. The reversal of 85406841634 is 43614860458.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39033112 + ... + 39035299.

It is an arithmetic number, because the mean of its divisors is an integer number (16043058666).

Almost surely, 2^85406841634 is an apocalyptic number.

85406841634 is a deficient number, since it is larger than the sum of its proper divisors (42937627694).

85406841634 is a wasteful number, since it uses less digits than its factorization.

85406841634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78068960.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 85406841634 in words is "eighty-five billion, four hundred six million, eight hundred forty-one thousand, six hundred thirty-four".