42121788006 has 16 divisors (see below), whose sum is σ = 85077672048. Its totient is φ = 13901580000.

The previous prime is 42121787999. The next prime is 42121788017. The reversal of 42121788006 is 60088712124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34753345 + ... + 34754556.

It is an arithmetic number, because the mean of its divisors is an integer number (5317354503).

Almost surely, 2^42121788006 is an apocalyptic number.

42121788006 is an abundant number, since it is smaller than the sum of its proper divisors (42955884042).

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

42121788006 is a wasteful number, since it uses less digits than its factorization.

42121788006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69508007.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 42121788006 in words is "forty-two billion, one hundred twenty-one million, seven hundred eighty-eight thousand, six".