857653281652 has 12 divisors (see below), whose sum is σ = 1549309154176. Its totient is φ = 414993523320.

The previous prime is 857653281649. The next prime is 857653281659. The reversal of 857653281652 is 256182356758.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857653281659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3458279238 + ... + 3458279485.

Almost surely, 2^857653281652 is an apocalyptic number.

It is an amenable number.

857653281652 is a deficient number, since it is larger than the sum of its proper divisors (691655872524).

857653281652 is a wasteful number, since it uses less digits than its factorization.

857653281652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916558758 (or 6916558756 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 58.

The spelling of 857653281652 in words is "eight hundred fifty-seven billion, six hundred fifty-three million, two hundred eighty-one thousand, six hundred fifty-two".