85862440620672 has 128 divisors (see below), whose sum is σ = 241515114480000. Its totient is φ = 26934224486400.

The previous prime is 85862440620659. The next prime is 85862440620809. The reversal of 85862440620672 is 27602604426858.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 58014672 + ... + 59476272.

It is an arithmetic number, because the mean of its divisors is an integer number (1886836831875).

Almost surely, 2^{85862440620672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85862440620672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120757557240000).

85862440620672 is an abundant number, since it is smaller than the sum of its proper divisors (155652673859328).

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

85862440620672 is a wasteful number, since it uses less digits than its factorization.

85862440620672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470634 (or 1470622 counting only the distinct ones).

The product of its (nonzero) digits is 61931520, while the sum is 60.

The spelling of 85862440620672 in words is "eighty-five trillion, eight hundred sixty-two billion, four hundred forty million, six hundred twenty thousand, six hundred seventy-two".