852721164590 has 16 divisors (see below), whose sum is σ = 1539897769872. Its totient is φ = 339977427264.

The previous prime is 852721164583. The next prime is 852721164599. The reversal of 852721164590 is 95461127258.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852721164599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138876599 + ... + 138882738.

It is an arithmetic number, because the mean of its divisors is an integer number (96243610617).

Almost surely, 2^852721164590 is an apocalyptic number.

852721164590 is a deficient number, since it is larger than the sum of its proper divisors (687176605282).

852721164590 is a wasteful number, since it uses less digits than its factorization.

852721164590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277759651.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 852721164590 in words is "eight hundred fifty-two billion, seven hundred twenty-one million, one hundred sixty-four thousand, five hundred ninety".