42878516331392 has 128 divisors (see below), whose sum is σ = 97762560698880. Its totient is φ = 18350661888000.

The previous prime is 42878516331359. The next prime is 42878516331419. The reversal of 42878516331392 is 29313361587824.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×42878516331392³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4650089342 + ... + 4650098562.

It is an arithmetic number, because the mean of its divisors is an integer number (763770005460).

Almost surely, 2^{42878516331392} 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 42878516331392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48881280349440).

42878516331392 is an abundant number, since it is smaller than the sum of its proper divisors (54884044367488).

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

42878516331392 is an equidigital number, since it uses as much as digits as its factorization.

42878516331392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15980 (or 15968 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The spelling of 42878516331392 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixteen million, three hundred thirty-one thousand, three hundred ninety-two".