42615645305 has 16 divisors (see below), whose sum is σ = 54265470480. Its totient is φ = 32016832512.

The previous prime is 42615645301. The next prime is 42615645323. The reversal of 42615645305 is 50354651624.

It is a happy number.

42615645305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 207244816 + 42408400489 = 14396^2 + 205933^2 .

It is a cyclic number.

It is not a de Polignac number, because 42615645305 - 2² = 42615645301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42615645301) 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, 509690 + ... + 587379.

It is an arithmetic number, because the mean of its divisors is an integer number (3391591905).

Almost surely, 2^42615645305 is an apocalyptic number.

It is an amenable number.

42615645305 is a deficient number, since it is larger than the sum of its proper divisors (11649825175).

42615645305 is a wasteful number, since it uses less digits than its factorization.

42615645305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097548.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 42615645305 in words is "forty-two billion, six hundred fifteen million, six hundred forty-five thousand, three hundred five".