42878537145873 has 48 divisors (see below), whose sum is σ = 72767964272640. Its totient is φ = 23986546848000.

The previous prime is 42878537145869. The next prime is 42878537145883. The reversal of 42878537145873 is 37854173587824.

42878537145873 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 8 + 5 + 37 + 1 + 4 + 587 + 3 = 666.

It is not a de Polignac number, because 42878537145873 - 2² = 42878537145869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42878537145833) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20534448 + ... + 22525998.

It is an arithmetic number, because the mean of its divisors is an integer number (1515999255680).

Almost surely, 2^{42878537145873} is an apocalyptic number.

It is an amenable number.

42878537145873 is a deficient number, since it is larger than the sum of its proper divisors (29889427126767).

42878537145873 is a wasteful number, since it uses less digits than its factorization.

42878537145873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008310 (or 2008307 counting only the distinct ones).

The product of its digits is 1264435200, while the sum is 72.

The spelling of 42878537145873 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-seven million, one hundred forty-five thousand, eight hundred seventy-three".