42878537145752 has 96 divisors (see below), whose sum is σ = 102063686653440. Its totient is φ = 16699664520000.

The previous prime is 42878537145749. The next prime is 42878537145791. The reversal of 42878537145752 is 25754173587824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9655877 + ... + 13378827.

It is an arithmetic number, because the mean of its divisors is an integer number (1063163402640).

Almost surely, 2^{42878537145752} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42878537145752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51031843326720).

42878537145752 is an abundant number, since it is smaller than the sum of its proper divisors (59185149507688).

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

42878537145752 is a wasteful number, since it uses less digits than its factorization.

42878537145752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725653 (or 3725642 counting only the distinct ones).

The product of its digits is 526848000, while the sum is 68.

The spelling of 42878537145752 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-seven million, one hundred forty-five thousand, seven hundred fifty-two".