42878540215448 has 32 divisors (see below), whose sum is σ = 91882896418560. Its totient is φ = 18376455186720.

The previous prime is 42878540215417. The next prime is 42878540215501. The reversal of 42878540215448 is 84451204587824.

42878540215448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42878540215448² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17984615 + ... + 20228777.

It is an arithmetic number, because the mean of its divisors is an integer number (2871340513080).

Almost surely, 2^{42878540215448} is an apocalyptic number.

It is an amenable number.

42878540215448 is an abundant number, since it is smaller than the sum of its proper divisors (49004356203112).

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

42878540215448 is a wasteful number, since it uses less digits than its factorization.

42878540215448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585367 (or 2585363 counting only the distinct ones).

The product of its (nonzero) digits is 91750400, while the sum is 62.

The spelling of 42878540215448 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred forty million, two hundred fifteen thousand, four hundred forty-eight".