42638775026 has 16 divisors (see below), whose sum is σ = 67543697760. Its totient is φ = 20131519680.

The previous prime is 42638775019. The next prime is 42638775031. The reversal of 42638775026 is 62057783624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815815 + ... + 1839146.

It is an arithmetic number, because the mean of its divisors is an integer number (4221481110).

Almost surely, 2^42638775026 is an apocalyptic number.

42638775026 is a deficient number, since it is larger than the sum of its proper divisors (24904922734).

42638775026 is a wasteful number, since it uses less digits than its factorization.

42638775026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655289.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 42638775026 in words is "forty-two billion, six hundred thirty-eight million, seven hundred seventy-five thousand, twenty-six".