852213661494 has 256 divisors, whose sum is σ = 2069077893120. Its totient is φ = 231403806720.

The previous prime is 852213661451. The next prime is 852213661499. The reversal of 852213661494 is 494166312258.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852213661499) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 409126977 + ... + 409129059.

It is an arithmetic number, because the mean of its divisors is an integer number (8082335520).

Almost surely, 2^852213661494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 852213661494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034538946560).

852213661494 is an abundant number, since it is smaller than the sum of its proper divisors (1216864231626).

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

852213661494 is a wasteful number, since it uses less digits than its factorization.

852213661494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its digits is 2488320, while the sum is 51.

The spelling of 852213661494 in words is "eight hundred fifty-two billion, two hundred thirteen million, six hundred sixty-one thousand, four hundred ninety-four".