42205521340450 has 24 divisors (see below), whose sum is σ = 84540905824788. Its totient is φ = 15583577110080.

The previous prime is 42205521340441. The next prime is 42205521340469. The reversal of 42205521340450 is 5404312550224.

It can be written as a sum of positive squares in 6 ways, for example, as 3172128416209 + 39033392924241 = 1781047^2 + 6247671^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32465784997 + ... + 32465786296.

Almost surely, 2^{42205521340450} is an apocalyptic number.

42205521340450 is an abundant number, since it is smaller than the sum of its proper divisors (42335384484338).

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

42205521340450 is a wasteful number, since it uses less digits than its factorization.

42205521340450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64931571318 (or 64931571313 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 42205521340450 its reverse (5404312550224), we get a palindrome (47609833890674).

The spelling of 42205521340450 in words is "forty-two trillion, two hundred five billion, five hundred twenty-one million, three hundred forty thousand, four hundred fifty".