42878788741638 has 48 divisors (see below), whose sum is σ = 93210056699760. Its totient is φ = 14245853833728.

The previous prime is 42878788741603. The next prime is 42878788741651. The reversal of 42878788741638 is 83614788787824.

42878788741638 is a `hidden beast` number, since 4 + 28 + 7 + 8 + 78 + 87 + 416 + 38 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170124606 + ... + 170376462.

It is an arithmetic number, because the mean of its divisors is an integer number (1941876181245).

Almost surely, 2^{42878788741638} is an apocalyptic number.

42878788741638 is an abundant number, since it is smaller than the sum of its proper divisors (50331267958122).

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

42878788741638 is a wasteful number, since it uses less digits than its factorization.

42878788741638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282981 (or 282978 counting only the distinct ones).

The product of its digits is 6473908224, while the sum is 81.

The spelling of 42878788741638 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred eighty-eight million, seven hundred forty-one thousand, six hundred thirty-eight".