857867068801 has 4 divisors (see below), whose sum is σ = 908329837572. Its totient is φ = 807404300032.

The previous prime is 857867068789. The next prime is 857867068819. The reversal of 857867068801 is 108860768758.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 767656345600 + 90210723201 = 876160^2 + 300351^2 .

It is a cyclic number.

It is not a de Polignac number, because 857867068801 - 2⁷ = 857867068673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857867068001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25231384360 + ... + 25231384393.

It is an arithmetic number, because the mean of its divisors is an integer number (227082459393).

Almost surely, 2^857867068801 is an apocalyptic number.

It is an amenable number.

857867068801 is a deficient number, since it is larger than the sum of its proper divisors (50462768771).

857867068801 is a wasteful number, since it uses less digits than its factorization.

857867068801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50462768770.

The product of its (nonzero) digits is 36126720, while the sum is 64.

The spelling of 857867068801 in words is "eight hundred fifty-seven billion, eight hundred sixty-seven million, sixty-eight thousand, eight hundred one".