850719870 has 576 divisors, whose sum is σ = 3226728960. Its totient is φ = 152409600.

The previous prime is 850719853. The next prime is 850719917. The reversal of 850719870 is 78917058.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 11981935 + ... + 11982005.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 2^850719870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850719870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613364480).

850719870 is an abundant number, since it is smaller than the sum of its proper divisors (2376009090).

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

850719870 is a wasteful number, since it uses less digits than its factorization.

850719870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 850719870 is about 29167.1025300766. The cubic root of 850719870 is about 947.5355774102.

The spelling of 850719870 in words is "eight hundred fifty million, seven hundred nineteen thousand, eight hundred seventy".