42154540115 has 16 divisors (see below), whose sum is σ = 53219769120. Its totient is φ = 32011879680.

The previous prime is 42154540081. The next prime is 42154540159. The reversal of 42154540115 is 51104545124.

It is a happy number.

42154540115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42154540115 - 2¹⁴ = 42154523731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2771225 + ... + 2786394.

It is an arithmetic number, because the mean of its divisors is an integer number (3326235570).

Almost surely, 2^42154540115 is an apocalyptic number.

42154540115 is a deficient number, since it is larger than the sum of its proper divisors (11065229005).

42154540115 is a wasteful number, since it uses less digits than its factorization.

42154540115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557702.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 42154540115 in words is "forty-two billion, one hundred fifty-four million, five hundred forty thousand, one hundred fifteen".