850878069984 has 96 divisors (see below), whose sum is σ = 2499842852640. Its totient is φ = 281555721216.

The previous prime is 850878069983. The next prime is 850878069997. The reversal of 850878069984 is 489960878058.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850878069983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3475839 + ... + 3712574.

It is an arithmetic number, because the mean of its divisors is an integer number (26040029715).

Almost surely, 2^850878069984 is an apocalyptic number.

It is an amenable number.

850878069984 is an abundant number, since it is smaller than the sum of its proper divisors (1648964782656).

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

850878069984 is a wasteful number, since it uses less digits than its factorization.

850878069984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188569 (or 7188555 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 72.

The spelling of 850878069984 in words is "eight hundred fifty billion, eight hundred seventy-eight million, sixty-nine thousand, nine hundred eighty-four".