42015604515 has 16 divisors (see below), whose sum is σ = 68493364128. Its totient is φ = 21985523456.

The previous prime is 42015604513. The next prime is 42015604619. The reversal of 42015604515 is 51540651024.

42015604515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42015604515 - 2¹ = 42015604513 is a prime.

It is a super-2 number, since 2×42015604515² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42015604513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26424114 + ... + 26425703.

It is an arithmetic number, because the mean of its divisors is an integer number (4280835258).

Almost surely, 2^42015604515 is an apocalyptic number.

42015604515 is a deficient number, since it is larger than the sum of its proper divisors (26477759613).

42015604515 is a wasteful number, since it uses less digits than its factorization.

42015604515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52849878.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 42015604515 in words is "forty-two billion, fifteen million, six hundred four thousand, five hundred fifteen".