42505650045 has 16 divisors (see below), whose sum is σ = 75565600320. Its totient is φ = 22669679952.

The previous prime is 42505649993. The next prime is 42505650053. The reversal of 42505650045 is 54005650524.

42505650045 is a `hidden beast` number, since 4 + 2 + 50 + 565 + 0 + 0 + 45 = 666.

It is not a de Polignac number, because 42505650045 - 2⁶ = 42505649981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42505649991 and 42505650009.

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, 157428199 + ... + 157428468.

It is an arithmetic number, because the mean of its divisors is an integer number (4722850020).

Almost surely, 2^42505650045 is an apocalyptic number.

42505650045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42505650045 is a deficient number, since it is larger than the sum of its proper divisors (33059950275).

42505650045 is a wasteful number, since it uses less digits than its factorization.

42505650045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314856681 (or 314856675 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 42505650045 in words is "forty-two billion, five hundred five million, six hundred fifty thousand, forty-five".