857680545377 has 8 divisors (see below), whose sum is σ = 886750766592. Its totient is φ = 828698018400.

The previous prime is 857680545343. The next prime is 857680545419. The reversal of 857680545377 is 773545086758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 857680545377 - 2⁶ = 857680545313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857680545307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21903668 + ... + 21942789.

It is an arithmetic number, because the mean of its divisors is an integer number (110843845824).

Almost surely, 2^857680545377 is an apocalyptic number.

It is an amenable number.

857680545377 is a deficient number, since it is larger than the sum of its proper divisors (29070221215).

857680545377 is a wasteful number, since it uses less digits than its factorization.

857680545377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43847119.

The product of its (nonzero) digits is 197568000, while the sum is 65.

The spelling of 857680545377 in words is "eight hundred fifty-seven billion, six hundred eighty million, five hundred forty-five thousand, three hundred seventy-seven".