42878518036212 has 96 divisors (see below), whose sum is σ = 106717243070592. Its totient is φ = 13352788504576.

The previous prime is 42878518036181. The next prime is 42878518036247. The reversal of 42878518036212 is 21263081587824.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377884078 + ... + 377997530.

It is an arithmetic number, because the mean of its divisors is an integer number (1111637948652).

Almost surely, 2^{42878518036212} 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 42878518036212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53358621535296).

42878518036212 is an abundant number, since it is smaller than the sum of its proper divisors (63838725034380).

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

42878518036212 is a wasteful number, since it uses less digits than its factorization.

42878518036212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127137 (or 127135 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 42878518036212 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred eighteen million, thirty-six thousand, two hundred twelve".