42414010021 has 4 divisors (see below), whose sum is σ = 42449924844. Its totient is φ = 42378095200.

The previous prime is 42414009997. The next prime is 42414010031. The reversal of 42414010021 is 12001041424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23620616100 + 18793393921 = 153690^2 + 137089^2 .

It is a cyclic number.

It is not a de Polignac number, because 42414010021 - 2⁹ = 42414009509 is a prime.

It is a super-2 number, since 2×42414010021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42414010031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17955640 + ... + 17958001.

It is an arithmetic number, because the mean of its divisors is an integer number (10612481211).

Almost surely, 2^42414010021 is an apocalyptic number.

It is an amenable number.

42414010021 is a deficient number, since it is larger than the sum of its proper divisors (35914823).

42414010021 is a wasteful number, since it uses less digits than its factorization.

42414010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35914822.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 42414010021 its reverse (12001041424), we get a palindrome (54415051445).

The spelling of 42414010021 in words is "forty-two billion, four hundred fourteen million, ten thousand, twenty-one".