42400666226028 has 24 divisors (see below), whose sum is σ = 107928968575680. Its totient is φ = 12848686735120.

The previous prime is 42400666225919. The next prime is 42400666226029. The reversal of 42400666226028 is 82062266600424.

It is a super-2 number, since 2×42400666226028² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42400666226029) by changing a digit.

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, 160608584058 + ... + 160608584321.

It is an arithmetic number, because the mean of its divisors is an integer number (4497040357320).

Almost surely, 2^{42400666226028} is an apocalyptic number.

It is an amenable number.

42400666226028 is an abundant number, since it is smaller than the sum of its proper divisors (65528302349652).

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

42400666226028 is a wasteful number, since it uses less digits than its factorization.

42400666226028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321217168397 (or 321217168395 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 42400666226028 in words is "forty-two trillion, four hundred billion, six hundred sixty-six million, two hundred twenty-six thousand, twenty-eight".