42006651804 has 144 divisors (see below), whose sum is σ = 118233722880. Its totient is φ = 12487685760.

The previous prime is 42006651767. The next prime is 42006651821. The reversal of 42006651804 is 40815660024.

It is a super-4 number, since 4×42006651804⁴ (a number of 44 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 10429239 + ... + 10433265.

It is an arithmetic number, because the mean of its divisors is an integer number (821067520).

Almost surely, 2^42006651804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42006651804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59116861440).

42006651804 is an abundant number, since it is smaller than the sum of its proper divisors (76227071076).

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

42006651804 is a wasteful number, since it uses less digits than its factorization.

42006651804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800 (or 4795 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 42006651804 in words is "forty-two billion, six million, six hundred fifty-one thousand, eight hundred four".