85219385510 has 32 divisors (see below), whose sum is σ = 185620714560. Its totient is φ = 27499364352.

The previous prime is 85219385501. The next prime is 85219385513. The reversal of 85219385510 is 1558391258.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85219385513) 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 15 ways as a sum of consecutive naturals, for example, 35805275 + ... + 35807654.

It is an arithmetic number, because the mean of its divisors is an integer number (5800647330).

Almost surely, 2^85219385510 is an apocalyptic number.

85219385510 is an abundant number, since it is smaller than the sum of its proper divisors (100401329050).

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

85219385510 is a wasteful number, since it uses less digits than its factorization.

85219385510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71612960.

The product of its (nonzero) digits is 432000, while the sum is 47.

The spelling of 85219385510 in words is "eighty-five billion, two hundred nineteen million, three hundred eighty-five thousand, five hundred ten".