857441894308 has 6 divisors (see below), whose sum is σ = 1500523315046. Its totient is φ = 428720947152.

The previous prime is 857441894299. The next prime is 857441894341. The reversal of 857441894308 is 803498144758.

It can be written as a sum of positive squares in only one way, i.e., 606993693604 + 250448200704 = 779098^2 + 500448^2 .

It is a super-2 number, since 2×857441894308² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107180236785 + ... + 107180236792.

Almost surely, 2^857441894308 is an apocalyptic number.

It is an amenable number.

857441894308 is a deficient number, since it is larger than the sum of its proper divisors (643081420738).

857441894308 is a wasteful number, since it uses less digits than its factorization.

857441894308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214360473581 (or 214360473579 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 857441894308 in words is "eight hundred fifty-seven billion, four hundred forty-one million, eight hundred ninety-four thousand, three hundred eight".