42811927983 has 24 divisors (see below), whose sum is σ = 67521467520. Its totient is φ = 25923450960.

The previous prime is 42811927967. The next prime is 42811927987. The reversal of 42811927983 is 38972911824.

42811927983 is a `hidden beast` number, since 4 + 281 + 19 + 279 + 83 = 666.

It is not a de Polignac number, because 42811927983 - 2⁴ = 42811927967 is a prime.

It is a super-2 number, since 2×42811927983² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42811927987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81363 + ... + 303716.

It is an arithmetic number, because the mean of its divisors is an integer number (2813394480).

Almost surely, 2^42811927983 is an apocalyptic number.

42811927983 is a deficient number, since it is larger than the sum of its proper divisors (24709539537).

42811927983 is a wasteful number, since it uses less digits than its factorization.

42811927983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386219 (or 386216 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 42811927983 in words is "forty-two billion, eight hundred eleven million, nine hundred twenty-seven thousand, nine hundred eighty-three".