42049780125 has 16 divisors (see below), whose sum is σ = 69970834752. Its totient is φ = 22426549200.

The previous prime is 42049780111. The next prime is 42049780133. The reversal of 42049780125 is 52108794024.

It is not a de Polignac number, because 42049780125 - 2²¹ = 42047682973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56065999 + ... + 56066748.

It is an arithmetic number, because the mean of its divisors is an integer number (4373177172).

Almost surely, 2^42049780125 is an apocalyptic number.

It is an amenable number.

42049780125 is a deficient number, since it is larger than the sum of its proper divisors (27921054627).

42049780125 is a wasteful number, since it uses less digits than its factorization.

42049780125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112132765 (or 112132755 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 42049780125 in words is "forty-two billion, forty-nine million, seven hundred eighty thousand, one hundred twenty-five".