85003780212 has 144 divisors (see below), whose sum is σ = 244459071360. Its totient is φ = 25516857600.

The previous prime is 85003780187. The next prime is 85003780219. The reversal of 85003780212 is 21208730058.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85003780219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 691537 + ... + 805127.

It is an arithmetic number, because the mean of its divisors is an integer number (1697632440).

Almost surely, 2^85003780212 is an apocalyptic number.

85003780212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85003780212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122229535680).

85003780212 is an abundant number, since it is smaller than the sum of its proper divisors (159455291148).

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

85003780212 is a wasteful number, since it uses less digits than its factorization.

85003780212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113671 (or 113650 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 85003780212 in words is "eighty-five billion, three million, seven hundred eighty thousand, two hundred twelve".