42215642015 has 8 divisors (see below), whose sum is σ = 50760294000. Its totient is φ = 33704831232.

The previous prime is 42215642011. The next prime is 42215642033. The reversal of 42215642015 is 51024651224.

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

It is a cyclic number.

It is not a de Polignac number, because 42215642015 - 2² = 42215642011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215642011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8457554 + ... + 8462543.

It is an arithmetic number, because the mean of its divisors is an integer number (6345036750).

Almost surely, 2^42215642015 is an apocalyptic number.

42215642015 is a deficient number, since it is larger than the sum of its proper divisors (8544651985).

42215642015 is a wasteful number, since it uses less digits than its factorization.

42215642015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16920601.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 42215642015 in words is "forty-two billion, two hundred fifteen million, six hundred forty-two thousand, fifteen".