839145965052 has 192 divisors, whose sum is σ = 2198599925760. Its totient is φ = 247548902400.

The previous prime is 839145965051. The next prime is 839145965057. The reversal of 839145965052 is 250569541938.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 839145964983 and 839145965001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839145965051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 434564527 + ... + 434566457.

It is an arithmetic number, because the mean of its divisors is an integer number (11451041280).

Almost surely, 2^839145965052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 839145965052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099299962880).

839145965052 is an abundant number, since it is smaller than the sum of its proper divisors (1359453960708).

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

839145965052 is a wasteful number, since it uses less digits than its factorization.

839145965052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 839145965052 in words is "eight hundred thirty-nine billion, one hundred forty-five million, nine hundred sixty-five thousand, fifty-two".