7857857864296 has 128 divisors (see below), whose sum is σ = 16351714477440. Its totient is φ = 3510170726400.

The previous prime is 7857857864293. The next prime is 7857857864299. The reversal of 7857857864296 is 6924687587587.

It is an interprime number because it is at equal distance from previous prime (7857857864293) and next prime (7857857864299).

It is not an unprimeable number, because it can be changed into a prime (7857857864291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2453279031 + ... + 2453282233.

It is an arithmetic number, because the mean of its divisors is an integer number (127747769355).

Almost surely, 2^{7857857864296} 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 7857857864296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8175857238720).

7857857864296 is an abundant number, since it is smaller than the sum of its proper divisors (8493856613144).

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

7857857864296 is a wasteful number, since it uses less digits than its factorization.

7857857864296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547 (or 4543 counting only the distinct ones).

The product of its digits is 11379916800, while the sum is 82.

The spelling of 7857857864296 in words is "seven trillion, eight hundred fifty-seven billion, eight hundred fifty-seven million, eight hundred sixty-four thousand, two hundred ninety-six".