42855852264820 has 24 divisors (see below), whose sum is σ = 102854045435904. Its totient is φ = 14693435062176.

The previous prime is 42855852264803. The next prime is 42855852264829. The reversal of 42855852264820 is 2846225855824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42855852264829) 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, 153056615092 + ... + 153056615371.

It is an arithmetic number, because the mean of its divisors is an integer number (4285585226496).

Almost surely, 2^{42855852264820} is an apocalyptic number.

It is an amenable number.

42855852264820 is an abundant number, since it is smaller than the sum of its proper divisors (59998193171084).

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

42855852264820 is a wasteful number, since it uses less digits than its factorization.

42855852264820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306113230479 (or 306113230477 counting only the distinct ones).

The product of its (nonzero) digits is 98304000, while the sum is 61.

The spelling of 42855852264820 in words is "forty-two trillion, eight hundred fifty-five billion, eight hundred fifty-two million, two hundred sixty-four thousand, eight hundred twenty".