42001424515 has 4 divisors (see below), whose sum is σ = 50401709424. Its totient is φ = 33601139608.

The previous prime is 42001424501. The next prime is 42001424519. The reversal of 42001424515 is 51542410024.

42001424515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42001424515 - 2²³ = 41993035907 is a prime.

It is a super-2 number, since 2×42001424515² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42001424519) 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, 4200142447 + ... + 4200142456.

It is an arithmetic number, because the mean of its divisors is an integer number (12600427356).

Almost surely, 2^42001424515 is an apocalyptic number.

42001424515 is a deficient number, since it is larger than the sum of its proper divisors (8400284909).

42001424515 is an equidigital number, since it uses as much as digits as its factorization.

42001424515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8400284908.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 42001424515 its reverse (51542410024), we get a palindrome (93543834539).

The spelling of 42001424515 in words is "forty-two billion, one million, four hundred twenty-four thousand, five hundred fifteen".