42534442015 has 32 divisors (see below), whose sum is σ = 56417772096. Its totient is φ = 30584355840.

The previous prime is 42534442009. The next prime is 42534442039. The reversal of 42534442015 is 51024443524.

It is not a de Polignac number, because 42534442015 - 2¹¹ = 42534439967 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 31 ways as a sum of consecutive naturals, for example, 1378537 + ... + 1409053.

It is an arithmetic number, because the mean of its divisors is an integer number (1763055378).

Almost surely, 2^42534442015 is an apocalyptic number.

42534442015 is a deficient number, since it is larger than the sum of its proper divisors (13883330081).

42534442015 is a wasteful number, since it uses less digits than its factorization.

42534442015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31099.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 42534442015 its reverse (51024443524), we get a palindrome (93558885539).

The spelling of 42534442015 in words is "forty-two billion, five hundred thirty-four million, four hundred forty-two thousand, fifteen".