857632650547 has 4 divisors (see below), whose sum is σ = 857709835480. Its totient is φ = 857555465616.

The previous prime is 857632650527. The next prime is 857632650551. The reversal of 857632650547 is 745056236758.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 857632650547 - 2³⁵ = 823272912179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857632650491 and 857632650500.

It is not an unprimeable number, because it can be changed into a prime (857632650527) 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, 38575797 + ... + 38598022.

It is an arithmetic number, because the mean of its divisors is an integer number (214427458870).

Almost surely, 2^857632650547 is an apocalyptic number.

857632650547 is a deficient number, since it is larger than the sum of its proper divisors (77184933).

857632650547 is a wasteful number, since it uses less digits than its factorization.

857632650547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77184932.

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 857632650547 in words is "eight hundred fifty-seven billion, six hundred thirty-two million, six hundred fifty thousand, five hundred forty-seven".