42589438250 has 16 divisors (see below), whose sum is σ = 79727428872. Its totient is φ = 17035775200.

The previous prime is 42589438237. The next prime is 42589438259. The reversal of 42589438250 is 5283498524.

It can be written as a sum of positive squares in 4 ways, for example, as 26839941241 + 15749497009 = 163829^2 + 125497^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42589438259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85178627 + ... + 85179126.

Almost surely, 2^42589438250 is an apocalyptic number.

42589438250 is a deficient number, since it is larger than the sum of its proper divisors (37137990622).

42589438250 is a wasteful number, since it uses less digits than its factorization.

42589438250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170357770 (or 170357760 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 42589438250 in words is "forty-two billion, five hundred eighty-nine million, four hundred thirty-eight thousand, two hundred fifty".