42878276887392 has 144 divisors (see below), whose sum is σ = 122797042647552. Its totient is φ = 14191809350400.

The previous prime is 42878276887249. The next prime is 42878276887393. The reversal of 42878276887392 is 29378867287824.

42878276887392 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 82 + 76 + 8 + 87 + 392 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878276887393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98369833 + ... + 98804759.

It is an arithmetic number, because the mean of its divisors is an integer number (852757240608).

Almost surely, 2^{42878276887392} 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 42878276887392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61398521323776).

42878276887392 is an abundant number, since it is smaller than the sum of its proper divisors (79918765760160).

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

42878276887392 is a wasteful number, since it uses less digits than its factorization.

42878276887392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437361 (or 437350 counting only the distinct ones).

The product of its digits is 7283146752, while the sum is 81.

The spelling of 42878276887392 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred seventy-six million, eight hundred eighty-seven thousand, three hundred ninety-two".