857358954636632 has 64 divisors (see below), whose sum is σ = 1856151966957120. Its totient is φ = 363648767827968.

The previous prime is 857358954636631. The next prime is 857358954636647. The reversal of 857358954636632 is 236636459853758.

It is a super-2 number, since 2×857358954636632² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857358954636631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823171748 + ... + 824212620.

It is an arithmetic number, because the mean of its divisors is an integer number (29002374483705).

Almost surely, 2^{857358954636632} is an apocalyptic number.

It is an amenable number.

857358954636632 is an abundant number, since it is smaller than the sum of its proper divisors (998793012320488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857358954636632 is a wasteful number, since it uses less digits than its factorization.

857358954636632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192620 (or 1192616 counting only the distinct ones).

The product of its digits is 23514624000, while the sum is 80.

The spelling of 857358954636632 in words is "eight hundred fifty-seven trillion, three hundred fifty-eight billion, nine hundred fifty-four million, six hundred thirty-six thousand, six hundred thirty-two".