85642605654 has 8 divisors (see below), whose sum is σ = 171285211320. Its totient is φ = 28547535216.

The previous prime is 85642605647. The next prime is 85642605689. The reversal of 85642605654 is 45650624658.

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

85642605654 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 85642605597 and 85642605606.

It is a congruent number.

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, 7136883799 + ... + 7136883810.

It is an arithmetic number, because the mean of its divisors is an integer number (21410651415).

Almost surely, 2^85642605654 is an apocalyptic number.

85642605654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85642605654 is a wasteful number, since it uses less digits than its factorization.

85642605654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273767614.

The product of its (nonzero) digits is 6912000, while the sum is 51.

The spelling of 85642605654 in words is "eighty-five billion, six hundred forty-two million, six hundred five thousand, six hundred fifty-four".