42021866010 has 32 divisors (see below), whose sum is σ = 102357744192. Its totient is φ = 11038579200.

The previous prime is 42021866009. The next prime is 42021866023. The reversal of 42021866010 is 1066812024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10451191 + ... + 10455210.

It is an arithmetic number, because the mean of its divisors is an integer number (3198679506).

Almost surely, 2^42021866010 is an apocalyptic number.

42021866010 is an abundant number, since it is smaller than the sum of its proper divisors (60335878182).

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

42021866010 is a wasteful number, since it uses less digits than its factorization.

42021866010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20906478.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 42021866010 in words is "forty-two billion, twenty-one million, eight hundred sixty-six thousand, ten".