42001440515 has 8 divisors (see below), whose sum is σ = 52139719440. Its totient is φ = 32442491872.

The previous prime is 42001440511. The next prime is 42001440517. The reversal of 42001440515 is 51504410024.

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 42001440515 - 2² = 42001440511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42001440511) 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, 144832409 + ... + 144832698.

It is an arithmetic number, because the mean of its divisors is an integer number (6517464930).

Almost surely, 2^42001440515 is an apocalyptic number.

42001440515 is a deficient number, since it is larger than the sum of its proper divisors (10138278925).

42001440515 is a wasteful number, since it uses less digits than its factorization.

42001440515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289665141.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 42001440515 its reverse (51504410024), we get a palindrome (93505850539).

The spelling of 42001440515 in words is "forty-two billion, one million, four hundred forty thousand, five hundred fifteen".