42005126215 has 8 divisors (see below), whose sum is σ = 54283547808. Its totient is φ = 31019170080.

The previous prime is 42005126173. The next prime is 42005126231. The reversal of 42005126215 is 51262150024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42005126215 - 2⁹ = 42005125703 is a prime.

It is a Duffinian 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, 323116291 + ... + 323116420.

It is an arithmetic number, because the mean of its divisors is an integer number (6785443476).

Almost surely, 2^42005126215 is an apocalyptic number.

42005126215 is a deficient number, since it is larger than the sum of its proper divisors (12278421593).

42005126215 is a wasteful number, since it uses less digits than its factorization.

42005126215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646232729.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 42005126215 its reverse (51262150024), we get a palindrome (93267276239).

The spelling of 42005126215 in words is "forty-two billion, five million, one hundred twenty-six thousand, two hundred fifteen".