42544245206 has 4 divisors (see below), whose sum is σ = 63816367812. Its totient is φ = 21272122602.

The previous prime is 42544245199. The next prime is 42544245281. The reversal of 42544245206 is 60254244524.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42544245206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10636061300 + ... + 10636061303.

It is an arithmetic number, because the mean of its divisors is an integer number (15954091953).

Almost surely, 2^42544245206 is an apocalyptic number.

42544245206 is a deficient number, since it is larger than the sum of its proper divisors (21272122606).

42544245206 is a wasteful number, since it uses less digits than its factorization.

42544245206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21272122605.

The product of its (nonzero) digits is 307200, while the sum is 38.

The spelling of 42544245206 in words is "forty-two billion, five hundred forty-four million, two hundred forty-five thousand, two hundred six".