857143783379 has 16 divisors (see below), whose sum is σ = 924799720320. Its totient is φ = 789734361600.

The previous prime is 857143783373. The next prime is 857143783427. The reversal of 857143783379 is 973387341758.

857143783379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 857143783379 - 2²⁰ = 857142734803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857143783373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59191862 + ... + 59206340.

It is an arithmetic number, because the mean of its divisors is an integer number (57799982520).

Almost surely, 2^857143783379 is an apocalyptic number.

857143783379 is a deficient number, since it is larger than the sum of its proper divisors (67655936941).

857143783379 is a wasteful number, since it uses less digits than its factorization.

857143783379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22670.

The product of its digits is 106686720, while the sum is 65.

The spelling of 857143783379 in words is "eight hundred fifty-seven billion, one hundred forty-three million, seven hundred eighty-three thousand, three hundred seventy-nine".