42049938066 has 32 divisors (see below), whose sum is σ = 84602734848. Its totient is φ = 13933001040.

The previous prime is 42049938059. The next prime is 42049938083. The reversal of 42049938066 is 66083994024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026901 + ... + 1067063.

It is an arithmetic number, because the mean of its divisors is an integer number (2643835464).

Almost surely, 2^42049938066 is an apocalyptic number.

42049938066 is an abundant number, since it is smaller than the sum of its proper divisors (42552796782).

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

42049938066 is a wasteful number, since it uses less digits than its factorization.

42049938066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41206.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 42049938066 in words is "forty-two billion, forty-nine million, nine hundred thirty-eight thousand, sixty-six".