52171887019990 has 16 divisors (see below), whose sum is σ = 93982591824048. Its totient is φ = 20852489210656.

The previous prime is 52171887019981. The next prime is 52171887019991. The reversal of 52171887019990 is 9991078817125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52171887019991) 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, 2033186197 + ... + 2033211856.

It is an arithmetic number, because the mean of its divisors is an integer number (5873911989003).

Almost surely, 2^{52171887019990} is an apocalyptic number.

52171887019990 is a deficient number, since it is larger than the sum of its proper divisors (41810704804058).

52171887019990 is a wasteful number, since it uses less digits than its factorization.

52171887019990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066399343.

The product of its (nonzero) digits is 22861440, while the sum is 67.

The spelling of 52171887019990 in words is "fifty-two trillion, one hundred seventy-one billion, eight hundred eighty-seven million, nineteen thousand, nine hundred ninety".