42291000106 has 4 divisors (see below), whose sum is σ = 63436500162. Its totient is φ = 21145500052.

The previous prime is 42291000097. The next prime is 42291000131. The reversal of 42291000106 is 60100019224.

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

It can be written as a sum of positive squares in only one way, i.e., 34524984481 + 7766015625 = 185809^2 + 88125^2 .

It is a super-2 number, since 2×42291000106² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10572750025 + ... + 10572750028.

Almost surely, 2^42291000106 is an apocalyptic number.

42291000106 is a deficient number, since it is larger than the sum of its proper divisors (21145500056).

42291000106 is a wasteful number, since it uses less digits than its factorization.

42291000106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145500055.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 42291000106 in words is "forty-two billion, two hundred ninety-one million, one hundred six", and thus it is an aban number.