42138280613500 has 48 divisors (see below), whose sum is σ = 92031913995840. Its totient is φ = 16854962587200.

The previous prime is 42138280613497. The next prime is 42138280613501. The reversal of 42138280613500 is 531608283124.

It is a super-3 number, since 3×42138280613500³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42138280613501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23957161 + ... + 25655839.

It is an arithmetic number, because the mean of its divisors is an integer number (1917331541580).

Almost surely, 2^{42138280613500} is an apocalyptic number.

It is an amenable number.

42138280613500 is an abundant number, since it is smaller than the sum of its proper divisors (49893633382340).

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

42138280613500 is a wasteful number, since it uses less digits than its factorization.

42138280613500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748311 (or 1748299 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

Adding to 42138280613500 its reverse (531608283124), we get a palindrome (42669888896624).

The spelling of 42138280613500 in words is "forty-two trillion, one hundred thirty-eight billion, two hundred eighty million, six hundred thirteen thousand, five hundred".