42780115238 has 16 divisors (see below), whose sum is σ = 73353047040. Its totient is φ = 18330408456.

The previous prime is 42780115211. The next prime is 42780115309. The reversal of 42780115238 is 83251108724.

42780115238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42780115195 and 42780115204.

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, 259028 + ... + 390711.

It is an arithmetic number, because the mean of its divisors is an integer number (4584565440).

Almost surely, 2^42780115238 is an apocalyptic number.

42780115238 is a deficient number, since it is larger than the sum of its proper divisors (30572931802).

42780115238 is a wasteful number, since it uses less digits than its factorization.

42780115238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654451.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 42780115238 in words is "forty-two billion, seven hundred eighty million, one hundred fifteen thousand, two hundred thirty-eight".