42642138030 has 16 divisors (see below), whose sum is σ = 102341131344. Its totient is φ = 11371236800.

The previous prime is 42642138013. The next prime is 42642138043. The reversal of 42642138030 is 3083124624.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42642137982 and 42642138000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710702271 + ... + 710702330.

It is an arithmetic number, because the mean of its divisors is an integer number (6396320709).

Almost surely, 2^42642138030 is an apocalyptic number.

42642138030 is an abundant number, since it is smaller than the sum of its proper divisors (59698993314).

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

42642138030 is a wasteful number, since it uses less digits than its factorization.

42642138030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421404611.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 42642138030 in words is "forty-two billion, six hundred forty-two million, one hundred thirty-eight thousand, thirty".