42740911769823 has 12 divisors (see below), whose sum is σ = 63865730231160. Its totient is φ = 27511391483856.

The previous prime is 42740911769821. The next prime is 42740911769849. The reversal of 42740911769823 is 32896711904724.

42740911769823 is a `hidden beast` number, since 4 + 2 + 7 + 409 + 117 + 6 + 98 + 23 = 666.

It is not a de Polignac number, because 42740911769823 - 2¹ = 42740911769821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42740911769821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81879141061 + ... + 81879141582.

It is an arithmetic number, because the mean of its divisors is an integer number (5322144185930).

Almost surely, 2^{42740911769823} is an apocalyptic number.

42740911769823 is a deficient number, since it is larger than the sum of its proper divisors (21124818461337).

42740911769823 is a wasteful number, since it uses less digits than its factorization.

42740911769823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163758282678 (or 163758282675 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 42740911769823 in words is "forty-two trillion, seven hundred forty billion, nine hundred eleven million, seven hundred sixty-nine thousand, eight hundred twenty-three".