7857872294352 has 80 divisors (see below), whose sum is σ = 20584226066880. Its totient is φ = 2582575543296.

The previous prime is 7857872294347. The next prime is 7857872294353. The reversal of 7857872294352 is 2534922787587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7857872294353) 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 15 ways as a sum of consecutive naturals, for example, 10533283 + ... + 11254589.

It is an arithmetic number, because the mean of its divisors is an integer number (257302825836).

Almost surely, 2^{7857872294352} 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 7857872294352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10292113033440).

7857872294352 is an abundant number, since it is smaller than the sum of its proper divisors (12726353772528).

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

7857872294352 is a wasteful number, since it uses less digits than its factorization.

7857872294352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724500 (or 724494 counting only the distinct ones).

The product of its digits is 474163200, while the sum is 69.

The spelling of 7857872294352 in words is "seven trillion, eight hundred fifty-seven billion, eight hundred seventy-two million, two hundred ninety-four thousand, three hundred fifty-two".