42544520115 has 32 divisors (see below), whose sum is σ = 69965838336. Its totient is φ = 22059838080.

The previous prime is 42544520113. The next prime is 42544520119. The reversal of 42544520115 is 51102544524.

It is a happy number.

It is not a de Polignac number, because 42544520115 - 2¹ = 42544520113 is a prime.

It is a super-2 number, since 2×42544520115² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42544520113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 693750 + ... + 752580.

It is an arithmetic number, because the mean of its divisors is an integer number (2186432448).

Almost surely, 2^42544520115 is an apocalyptic number.

42544520115 is a deficient number, since it is larger than the sum of its proper divisors (27421318221).

42544520115 is a wasteful number, since it uses less digits than its factorization.

42544520115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60179.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 42544520115 in words is "forty-two billion, five hundred forty-four million, five hundred twenty thousand, one hundred fifteen".