42819137748 has 144 divisors (see below), whose sum is σ = 114369755136. Its totient is φ = 13487523840.

The previous prime is 42819137731. The next prime is 42819137761. The reversal of 42819137748 is 84773191824.

42819137748 is a `hidden beast` number, since 42 + 8 + 191 + 377 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 42819137694 and 42819137703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35299590 + ... + 35300802.

Almost surely, 2^42819137748 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 42819137748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57184877568).

42819137748 is an abundant number, since it is smaller than the sum of its proper divisors (71550617388).

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

42819137748 is a wasteful number, since it uses less digits than its factorization.

42819137748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974 (or 1969 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The spelling of 42819137748 in words is "forty-two billion, eight hundred nineteen million, one hundred thirty-seven thousand, seven hundred forty-eight".